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FAQ

Frequently asked questions on W&H products and helpful descriptions on the topic of hygiene and care.

/products/prophylaxisparadontology/airpolisher /products/prophylaxisparadontology/airpolisher

/products/prophylaxisparadontology/airpolisher/proxeoaura (8)
Should I always call my service department first before I send devices/instruments for repair?

If you are unsure of the cause of the problem, it is better to contact your service department first and talk to a technician. Together with the technician, malfunctions can sometimes be resolved or it may be determined which items need to be sent for repair.

Can the Proxeo Aura air polishing handpiece be prepared in the sterilizer?

No. The air polishing handpiece can be disinfected by wiping. The removable spray attachments can be disinfected in a thermo washer and are sterilizable.

Can the Proxeo Aura air polishing handpiece be prepared in the thermo washer disinfector?

No. The air polishing handpiece can be disinfected by wiping. The removable spray attachments can be disinfected in a thermo washer and are sterilizable.

Can I use any polishing powder available on the market in the Proxeo Aura air polishing handpiece?

The Proxeo Aura air polishing handpiece and the relevant powders were developed as a complete treatment system, in order to achieve the best possible treatment results and to ensure the reliability of the system. The use of other powders is not approved. This can lead to increased abrasiveness and risk of blockage or reduced efficiency.

On which turbine coupling can I use the Proxeo Aura air polishing handpiece?

The Proxeo Aura air polishing handpiece is available with connections for W&H Roto Quick, KaVo Multiflex, NSK and SIRONA.

Can I use the W&H prophylaxis powder for other air polishing handpieces?

This depends on the manufacturer’s specifications for the relevant air polishing handpiece/device.

Can I use the Proxeo Aura periodontal tips more than once?

No, the Proxeo Aura periodontal tips are single-use products. They are delivered individually in sterile shrink-wrapped packaging.

How often do I need to empty the powder tank?

It is recommended that you empty the powder tank at least once every day.

Accessories Accessories

/products/prophylaxisparadontology/accessories/prophylaxispowder (2)
Can I use any polishing powder available on the market in the Proxeo Aura air polishing handpiece?

The Proxeo Aura air polishing handpiece and the relevant powders were developed as a complete treatment system, in order to achieve the best possible treatment results and to ensure the reliability of the system. The use of other powders is not approved. This can lead to increased abrasiveness and risk of blockage or reduced efficiency.

Can I use the W&H prophylaxis powder for other air polishing handpieces?

This depends on the manufacturer’s specifications for the relevant air polishing handpiece/device.

Piezo Scaler Tips (5)
Can the tips and tip changers be prepared in the sterilizer?

Yes, as long as your handpiece or contra-angle handpiece carries the mark “sterilizable up to the stated temperature”.

Are the tips and tip changers thermo washer disinfectable?

Yes, as long as your handpiece or contra-angle handpiece carries the mark “thermo washer disinfectable”.

Are W&H tips (e.g. 1U) compatible with the new W&H high-speed mounting system?

No, they are not compatible because they have different threads.

How do I know which tip goes with which handpiece?

There are symbols on the tip, the tip changer and the handpiece identifying which system they belong to.

Prophy Cups and Brushes (3)
Can I use my LatchShort Prophy cups and brushes with other contra-angle handpieces?

No, LatchShort Prophy cups and brushes are designed to be used only with the WP-66 W contra-angle handpiece.

Can I use the Proxeo TWIST LatchShort Prophy cups and brushes multiple times?

No, the Proxeo TWIST Prophy cups and brushes are single-use only.

Can I use the W&H Proxeo TWIST LatchShort prophy cups in a contra-angle handpiece with a standard 2.35-mm chuck?

Due to the shorter shaft length of the W&H prophy cups, they cannot be gripped by a standard contra-angle handpiece chuck , so it is not possible to drive the W&H prophy cup.

Sterilizers Sterilizers

/products/hygienicmaintenance/sterilization/laraautoclave (27)
Warning about consumable replacement.

POSSIBLE CAUSE
A consumable needs to be replaced.
SOLUTION
Order the requested consumable (door seal, dust filter, bacteriological filter) and replace it. See the chapter “Maintenance” in the Instructions for Use.

Does my sterilizer need any periodic qualification/validation?

Validation generally comprises a range of tests defined in internationally recognised standards. These tests begin for every device with the factory tests at W&H. In addition, corresponding documentation is included with your device. Prior to commissioning the device at your premises, the technician performs further checks to ensure the device functions correctly. Then, depending on the national/regional laws and directives, the device must be subjected to a so-called renewed performance qualification at regular intervals. For further information, please contact your dealer.

Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

The cycle starts but there is no rise in pressure/temperature

POSSIBLE CAUSE
The safety thermostat is open.
SOLUTION
Reset the safety thermostat (see chapter “Reset the safety thermostat” in the Instructions for Use).

POSSIBLE CAUSE
Electric/electronic fault
SOLUTION
Contact an authorized W&H service partner.

At the end of the cycle, there is residual water in the chamber.

POSSIBLE CAUSE
Sterilizer not properly levelled.
SOLUTION
Place the sterilizator on a flat, level surface.

POSSIBLE CAUSE
Overloaded chamber.
SOLUTION
Comply with the maximum load weight limits for each type of load. Always use the chamber rack for trays and cassettes.

POSSIBLE CAUSE
Chamber filter clogged.
SOLUTION
Remove and clean the chamber filter.

POSSIBLE CAUSE
Chamber filter cap mispositioned.
SOLUTION
Mount the chamber filter cap properly (see chapter “Monthly or 50-cycle maintenance - Cleaning the chamber filter” in the Instructions for Use).

POSSIBLE CAUSE
Load incorrectly placed.
SOLUTION
Follow the recommendations as listed in chapter “Load maintenance and preparation” in the Instructions for Use.

Stains or spots on instruments.

POSSIBLE CAUSE
Instruments rinsed with tap water and not dried before sterilization.
SOLUTION
Ensure that instruments are rinsed with distilled or demineralized water and completely dry before they are placed in the sterilizer.

POSSIBLE CAUSE
Use of water of poor quality or water containing chemical substances.
SOLUTION
Drain both water tanks. Use good quality water (see chapter “Water quality” in the Instructions for Use).

POSSIBLE CAUSE
Organic or chemical residues on the instruments
SOLUTION
Clean, rinse and dry instruments before placing them in the sterilizer (see chapter “Load maintenance and preparation” in the Instructions for Use.

POSSIBLE CAUSE
Dirt in chamber, trays, tray rack.
SOLUTION
Clean the chamber and wash the chamber furniture.

POSSIBLE CAUSE
Contact between instruments of different materials.
SOLUTION
Ensure that instruments of different materials do not touch each other (aluminium, carbon or stainless steel, etc.); place them on different trays or cassettes or pouch them (see chapter “Load maintenance and preparation” in the Instructions for Use).

POSSIBLE CAUSE
Scale deposits on the chamber.
SOLUTION
Clean the chamber and use good quality water (see chapter “Water quality” in the Instructions for Use).

Instruments are turning brown or black.

POSSIBLE CAUSE
Incorrect temperature selected.
SOLUTION
Select a sterilization cycle featuring a lower sterilization temperature. Follow the instructions of the instrument manufacturer.

No cycles are stored in the cycle history menu.

POSSIBLE CAUSE
An electronic board was replaced when serviced.
SOLUTION
The memory of the old board can not be restored. Consult the cycle history in the USB pen drive.

When starting a cycle, the chamber door locks but re-opens immediately. The “Open the door” message appears.

POSSIBLE CAUSE
Door seal not properly placed.
SOLUTION
Ensure that the door seal is correctly inserted around the whole circumference.

POSSIBLE CAUSE
Door jammed by external objects or by the load itself.
SOLUTION
Remove any objects interfering with the chamber door. Check for interference between the door and the chamber furniture and/or the load.

The sterilizer enters into “Standby mode” immediately after being switched on.

POSSIBLE CAUSE
The unit was turned off while in standby mode.
SOLUTION
Press the standby mode button to exit.

At the end of the cycle the display reads “Open the door” but it is not possible to open the door.

POSSIBLE CAUSE
The chamber is still under pressure due to an internal malfunction.
SOLUTION
Unplug the sterilizer and wait at least three hours: this releases any internal pressure allowing the chamber door to be opened. Then retry. Call service if the problem persists.

POSSIBLE CAUSE
The bacteriological filter is blocked.
SOLUTION
Remove the bacteriological filter to release the pressure. Replace the filter (see the chapter “400-cycle maintenance – Replacing the bacteriological filter” in the Instructions for Use). Note that bacteriological filters need to be replaced every 400 cycles.

The sterilization (PROCESS) phase of a sterilization cycle was longer than expected.

POSSIBLE CAUSE
The chamber temperature dropped below the minimum threshold and the software performed a successful recovery.
SOLUTION
Wait for cycle completion. If the problem occurs frequently, contact an authorized W&H service partner.

Warning about saving to the USB (HTML and SCL files)

POSSIBLE CAUSE
The USB mass storage is disconnected or full.
SOLUTION
Check presence and condition of the USB pen drive. If the problem persist, contact an authorized W&H service partner.

Warning about programmed maintenance.

POSSIBLE CAUSE
The maintenance program needs to be carried out.
SOLUTION
Contact an authorized W&H service partner.

The cycle report printer does not work.

POSSIBLE CAUSE
Printer not properly connected or not powered.
SOLUTION
Check the data and power connection to the printer.

The sterilizer is connected to an automated water supply system, there is no clean water in the tank and the automatic water filling does not fill the water.

POSSIBLE CAUSE
Water filling system not connected.
SOLUTION
Connect the water filling system to the sterilizer. (see ANNEX 7 For water quality requirements see chapter “Water quality” in the Instructions For Use).

POSSIBLE CAUSE
When the water filling system attempted to fill the tank, water was temporarily unavailable.
SOLUTION
Since the water tank filling is attempted only once in-between cycle execution, this event inhibits water feeding. Switch the sterilizer OFF and then ON again.
Check the external water supply system.
Check for water leaks from the sterilizer.

POSSIBLE CAUSE
Faulty MIN water level sensor in the clean water tank.
SOLUTION
Contact an authorized W&H service partner.

The sterilizer remains switched OFF.

POSSIBLE CAUSE
The main switch or network circuit breaker is OFF.
SOLUTION
Activate the main switch or network circuit breaker (ON).

POSSIBLE CAUSE
No voltage at the socket.
SOLUTION
Check the building electrical supply.

POSSIBLE CAUSE
The power cord is not connected properly.
SOLUTION
Check and connect the power cord properly.

Water is leaking at the front of the sterilizer.

POSSIBLE CAUSE
Leaks through the chamber door seal.
SOLUTION
Clean or replace the door seal. Clean the door surface facing the chamber.

POSSIBLE CAUSE
Internal leak.
SOLUTION
Contact an authorized W&H service partner.

Whom should I contact to validate and maintain my sterilizer?

Validation shall be carried out by an official authority. Maintenance tasks shall be carried out by a qualified and authorised technician.

How do I change consumable components on my sterilizer?

Consumable replacement instructions are provided in the Instructions for Use, chapter “Maintenance”. In addition, a video description is available: • in the sterilizer, in the maintenance section of the menu (only for Lisa); • in the Consumables & Accessories and Video Tutorial section of this web site.

How do I clean the water tanks and what products should I use?

Water tank cleaning instructions are provided in the Instructions for Use, chapter “Maintenance”. Information and videos relating to the cleaning of the water tanks and cleaning products can also be found on the Video Tutorial section of this web site.

Which water quality should I use for my sterilizer?

The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 15 µS/cm should be used for your W&H sterilizer. The Multidem system is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use).

Should I pouch/wrap my instruments and how long can I store them after sterilization?

To ensure that your instruments are stored in a sterile state from their successful sterilization until they are used, W&H recommends wrapping them in suitable sterile barrier systems before sterilization. The recommended storage period can be found in the recommendations of the wrapping material manufacturer. For further information, please contact your dealer.

Do I need to carry out periodic testing on my Lisa/Lina/Lara?

Lisa/Lina/Lara features test cycles (B&D/Helix test, Vacuum test). Compulsory and frequency of testing are regulated by local/national guidelines.

What is validation?

Validation is a testing procedure carried out by an official authority, proving the effectiveness of your sterilizer. Compulsories and frequency of validation are regulated by local/national guidelines.

Do I need to document the results of all periodic tests?

W&H recommends recording all periodic tests, repairs and modifications on the sterilizer in a logbook including date and signature of the person who carried out the test or other activity. Compulsories of recording is regulated by local/national guidelines.

How long should I archive the documentation of regular tests?

Keep the results according to your country/regional specific laws and guidelines. Those records can be of assistance in case of service as well.

Lisa (27)
Warning about consumable replacement.

POSSIBLE CAUSE
A consumable needs to be replaced.
SOLUTION
Order the requested consumable (door seal, dust filter, bacteriological filter) and replace it. See the chapter “Maintenance” in the Instructions for Use.

Does my sterilizer need any periodic qualification/validation?

Validation generally comprises a range of tests defined in internationally recognised standards. These tests begin for every device with the factory tests at W&H. In addition, corresponding documentation is included with your device. Prior to commissioning the device at your premises, the technician performs further checks to ensure the device functions correctly. Then, depending on the national/regional laws and directives, the device must be subjected to a so-called renewed performance qualification at regular intervals. For further information, please contact your dealer.

Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

The cycle starts but there is no rise in pressure/temperature

POSSIBLE CAUSE
The safety thermostat is open.
SOLUTION
Reset the safety thermostat (see chapter “Reset the safety thermostat” in the Instructions for Use).

POSSIBLE CAUSE
Electric/electronic fault
SOLUTION
Contact an authorized W&H service partner.

At the end of the cycle, there is residual water in the chamber.

POSSIBLE CAUSE
Sterilizer not properly levelled.
SOLUTION
Place the sterilizator on a flat, level surface.

POSSIBLE CAUSE
Overloaded chamber.
SOLUTION
Comply with the maximum load weight limits for each type of load. Always use the chamber rack for trays and cassettes.

POSSIBLE CAUSE
Chamber filter clogged.
SOLUTION
Remove and clean the chamber filter.

POSSIBLE CAUSE
Chamber filter cap mispositioned.
SOLUTION
Mount the chamber filter cap properly (see chapter “Monthly or 50-cycle maintenance - Cleaning the chamber filter” in the Instructions for Use).

POSSIBLE CAUSE
Load incorrectly placed.
SOLUTION
Follow the recommendations as listed in chapter “Load maintenance and preparation” in the Instructions for Use.

Stains or spots on instruments.

POSSIBLE CAUSE
Instruments rinsed with tap water and not dried before sterilization.
SOLUTION
Ensure that instruments are rinsed with distilled or demineralized water and completely dry before they are placed in the sterilizer.

POSSIBLE CAUSE
Use of water of poor quality or water containing chemical substances.
SOLUTION
Drain both water tanks. Use good quality water (see chapter “Water quality” in the Instructions for Use).

POSSIBLE CAUSE
Organic or chemical residues on the instruments
SOLUTION
Clean, rinse and dry instruments before placing them in the sterilizer (see chapter “Load maintenance and preparation” in the Instructions for Use.

POSSIBLE CAUSE
Dirt in chamber, trays, tray rack.
SOLUTION
Clean the chamber and wash the chamber furniture.

POSSIBLE CAUSE
Contact between instruments of different materials.
SOLUTION
Ensure that instruments of different materials do not touch each other (aluminium, carbon or stainless steel, etc.); place them on different trays or cassettes or pouch them (see chapter “Load maintenance and preparation” in the Instructions for Use).

POSSIBLE CAUSE
Scale deposits on the chamber.
SOLUTION
Clean the chamber and use good quality water (see chapter “Water quality” in the Instructions for Use).

Instruments are turning brown or black.

POSSIBLE CAUSE
Incorrect temperature selected.
SOLUTION
Select a sterilization cycle featuring a lower sterilization temperature. Follow the instructions of the instrument manufacturer.

No cycles are stored in the cycle history menu.

POSSIBLE CAUSE
An electronic board was replaced when serviced.
SOLUTION
The memory of the old board can not be restored. Consult the cycle history in the USB pen drive.

When starting a cycle, the chamber door locks but re-opens immediately. The “Open the door” message appears.

POSSIBLE CAUSE
Door seal not properly placed.
SOLUTION
Ensure that the door seal is correctly inserted around the whole circumference.

POSSIBLE CAUSE
Door jammed by external objects or by the load itself.
SOLUTION
Remove any objects interfering with the chamber door. Check for interference between the door and the chamber furniture and/or the load.

The sterilizer enters into “Standby mode” immediately after being switched on.

POSSIBLE CAUSE
The unit was turned off while in standby mode.
SOLUTION
Press the standby mode button to exit.

At the end of the cycle the display reads “Open the door” but it is not possible to open the door.

POSSIBLE CAUSE
The chamber is still under pressure due to an internal malfunction.
SOLUTION
Unplug the sterilizer and wait at least three hours: this releases any internal pressure allowing the chamber door to be opened. Then retry. Call service if the problem persists.

POSSIBLE CAUSE
The bacteriological filter is blocked.
SOLUTION
Remove the bacteriological filter to release the pressure. Replace the filter (see the chapter “400-cycle maintenance – Replacing the bacteriological filter” in the Instructions for Use). Note that bacteriological filters need to be replaced every 400 cycles.

The sterilization (PROCESS) phase of a sterilization cycle was longer than expected.

POSSIBLE CAUSE
The chamber temperature dropped below the minimum threshold and the software performed a successful recovery.
SOLUTION
Wait for cycle completion. If the problem occurs frequently, contact an authorized W&H service partner.

Warning about saving to the USB (HTML and SCL files)

POSSIBLE CAUSE
The USB mass storage is disconnected or full.
SOLUTION
Check presence and condition of the USB pen drive. If the problem persist, contact an authorized W&H service partner.

Warning about programmed maintenance.

POSSIBLE CAUSE
The maintenance program needs to be carried out.
SOLUTION
Contact an authorized W&H service partner.

The cycle report printer does not work.

POSSIBLE CAUSE
Printer not properly connected or not powered.
SOLUTION
Check the data and power connection to the printer.

The sterilizer is connected to an automated water supply system, there is no clean water in the tank and the automatic water filling does not fill the water.

POSSIBLE CAUSE
Water filling system not connected.
SOLUTION
Connect the water filling system to the sterilizer. (see ANNEX 7 For water quality requirements see chapter “Water quality” in the Instructions For Use).

POSSIBLE CAUSE
When the water filling system attempted to fill the tank, water was temporarily unavailable.
SOLUTION
Since the water tank filling is attempted only once in-between cycle execution, this event inhibits water feeding. Switch the sterilizer OFF and then ON again.
Check the external water supply system.
Check for water leaks from the sterilizer.

POSSIBLE CAUSE
Faulty MIN water level sensor in the clean water tank.
SOLUTION
Contact an authorized W&H service partner.

The sterilizer remains switched OFF.

POSSIBLE CAUSE
The main switch or network circuit breaker is OFF.
SOLUTION
Activate the main switch or network circuit breaker (ON).

POSSIBLE CAUSE
No voltage at the socket.
SOLUTION
Check the building electrical supply.

POSSIBLE CAUSE
The power cord is not connected properly.
SOLUTION
Check and connect the power cord properly.

Water is leaking at the front of the sterilizer.

POSSIBLE CAUSE
Leaks through the chamber door seal.
SOLUTION
Clean or replace the door seal. Clean the door surface facing the chamber.

POSSIBLE CAUSE
Internal leak.
SOLUTION
Contact an authorized W&H service partner.

Whom should I contact to validate and maintain my sterilizer?

Validation shall be carried out by an official authority. Maintenance tasks shall be carried out by a qualified and authorised technician.

How do I change consumable components on my sterilizer?

Consumable replacement instructions are provided in the Instructions for Use, chapter “Maintenance”. In addition, a video description is available: • in the sterilizer, in the maintenance section of the menu (only for Lisa); • in the Consumables & Accessories and Video Tutorial section of this web site.

How do I clean the water tanks and what products should I use?

Water tank cleaning instructions are provided in the Instructions for Use, chapter “Maintenance”. Information and videos relating to the cleaning of the water tanks and cleaning products can also be found on the Video Tutorial section of this web site.

Which water quality should I use for my sterilizer?

The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 15 µS/cm should be used for your W&H sterilizer. The Multidem system is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use).

Should I pouch/wrap my instruments and how long can I store them after sterilization?

To ensure that your instruments are stored in a sterile state from their successful sterilization until they are used, W&H recommends wrapping them in suitable sterile barrier systems before sterilization. The recommended storage period can be found in the recommendations of the wrapping material manufacturer. For further information, please contact your dealer.

Do I need to carry out periodic testing on my Lisa/Lina/Lara?

Lisa/Lina/Lara features test cycles (B&D/Helix test, Vacuum test). Compulsory and frequency of testing are regulated by local/national guidelines.

What is validation?

Validation is a testing procedure carried out by an official authority, proving the effectiveness of your sterilizer. Compulsories and frequency of validation are regulated by local/national guidelines.

Do I need to document the results of all periodic tests?

W&H recommends recording all periodic tests, repairs and modifications on the sterilizer in a logbook including date and signature of the person who carried out the test or other activity. Compulsories of recording is regulated by local/national guidelines.

How long should I archive the documentation of regular tests?

Keep the results according to your country/regional specific laws and guidelines. Those records can be of assistance in case of service as well.

Lina (24)
Does my sterilizer need any periodic qualification/validation?

Validation generally comprises a range of tests defined in internationally recognised standards. These tests begin for every device with the factory tests at W&H. In addition, corresponding documentation is included with your device. Prior to commissioning the device at your premises, the technician performs further checks to ensure the device functions correctly. Then, depending on the national/regional laws and directives, the device must be subjected to a so-called renewed performance qualification at regular intervals. For further information, please contact your dealer.

Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

The cycle starts but there is no rise in pressure/temperature

POSSIBLE CAUSE
The safety thermostat is open.
SOLUTION
Reset the safety thermostat (see chapter “Reset the safety thermostat” in the Instructions for Use).

POSSIBLE CAUSE
Electric/electronic fault
SOLUTION
Contact an authorized W&H service partner.

At the end of the cycle, there is residual water in the chamber.

POSSIBLE CAUSE
Sterilizer not properly levelled.
SOLUTION
Place the sterilizator on a flat, level surface.

POSSIBLE CAUSE
Overloaded chamber.
SOLUTION
Comply with the maximum load weight limits for each type of load. Always use the chamber rack for trays and cassettes.

POSSIBLE CAUSE
Chamber filter clogged.
SOLUTION
Remove and clean the chamber filter.

POSSIBLE CAUSE
Chamber filter cap mispositioned.
SOLUTION
Mount the chamber filter cap properly (see chapter “Monthly or 50-cycle maintenance - Cleaning the chamber filter” in the Instructions for Use).

POSSIBLE CAUSE
Load incorrectly placed.
SOLUTION
Follow the recommendations as listed in chapter “Load maintenance and preparation” in the Instructions for Use.

Stains or spots on instruments.

POSSIBLE CAUSE
Instruments rinsed with tap water and not dried before sterilization.
SOLUTION
Ensure that instruments are rinsed with distilled or demineralized water and completely dry before they are placed in the sterilizer.

POSSIBLE CAUSE
Use of water of poor quality or water containing chemical substances.
SOLUTION
Drain both water tanks. Use good quality water (see chapter “Water quality” in the Instructions for Use).

POSSIBLE CAUSE
Organic or chemical residues on the instruments
SOLUTION
Clean, rinse and dry instruments before placing them in the sterilizer (see chapter “Load maintenance and preparation” in the Instructions for Use.

POSSIBLE CAUSE
Dirt in chamber, trays, tray rack.
SOLUTION
Clean the chamber and wash the chamber furniture.

POSSIBLE CAUSE
Contact between instruments of different materials.
SOLUTION
Ensure that instruments of different materials do not touch each other (aluminium, carbon or stainless steel, etc.); place them on different trays or cassettes or pouch them (see chapter “Load maintenance and preparation” in the Instructions for Use).

POSSIBLE CAUSE
Scale deposits on the chamber.
SOLUTION
Clean the chamber and use good quality water (see chapter “Water quality” in the Instructions for Use).

Instruments are turning brown or black.

POSSIBLE CAUSE
Incorrect temperature selected.
SOLUTION
Select a sterilization cycle featuring a lower sterilization temperature. Follow the instructions of the instrument manufacturer.

When starting a cycle, the chamber door locks but re-opens immediately. The “Open the door” message appears.

POSSIBLE CAUSE
Door seal not properly placed.
SOLUTION
Ensure that the door seal is correctly inserted around the whole circumference.

POSSIBLE CAUSE
Door jammed by external objects or by the load itself.
SOLUTION
Remove any objects interfering with the chamber door. Check for interference between the door and the chamber furniture and/or the load.

The sterilizer enters into “Standby mode” immediately after being switched on.

POSSIBLE CAUSE
The unit was turned off while in standby mode.
SOLUTION
Press the standby mode button to exit.

At the end of the cycle the display reads “Open the door” but it is not possible to open the door.

POSSIBLE CAUSE
The chamber is still under pressure due to an internal malfunction.
SOLUTION
Unplug the sterilizer and wait at least three hours: this releases any internal pressure allowing the chamber door to be opened. Then retry. Call service if the problem persists.

POSSIBLE CAUSE
The bacteriological filter is blocked.
SOLUTION
Remove the bacteriological filter to release the pressure. Replace the filter (see the chapter “400-cycle maintenance – Replacing the bacteriological filter” in the Instructions for Use). Note that bacteriological filters need to be replaced every 400 cycles.

The sterilization (PROCESS) phase of a sterilization cycle was longer than expected.

POSSIBLE CAUSE
The chamber temperature dropped below the minimum threshold and the software performed a successful recovery.
SOLUTION
Wait for cycle completion. If the problem occurs frequently, contact an authorized W&H service partner.

The cycle report printer does not work.

POSSIBLE CAUSE
Printer not properly connected or not powered.
SOLUTION
Check the data and power connection to the printer.

The sterilizer is connected to an automated water supply system, there is no clean water in the tank and the automatic water filling does not fill the water.

POSSIBLE CAUSE
Water filling system not connected.
SOLUTION
Connect the water filling system to the sterilizer. (see ANNEX 7 For water quality requirements see chapter “Water quality” in the Instructions For Use).

POSSIBLE CAUSE
When the water filling system attempted to fill the tank, water was temporarily unavailable.
SOLUTION
Since the water tank filling is attempted only once in-between cycle execution, this event inhibits water feeding. Switch the sterilizer OFF and then ON again.
Check the external water supply system.
Check for water leaks from the sterilizer.

POSSIBLE CAUSE
Faulty MIN water level sensor in the clean water tank.
SOLUTION
Contact an authorized W&H service partner.

LINA PRO13-003
What is the maximum noise level of the sterilizer?

The silent running noise at a maximum level of 66.5 dB(A) guarantees a quiet working environment.

The sterilizer remains switched OFF.

POSSIBLE CAUSE
The main switch or network circuit breaker is OFF.
SOLUTION
Activate the main switch or network circuit breaker (ON).

POSSIBLE CAUSE
No voltage at the socket.
SOLUTION
Check the building electrical supply.

POSSIBLE CAUSE
The power cord is not connected properly.
SOLUTION
Check and connect the power cord properly.

Water is leaking at the front of the sterilizer.

POSSIBLE CAUSE
Leaks through the chamber door seal.
SOLUTION
Clean or replace the door seal. Clean the door surface facing the chamber.

POSSIBLE CAUSE
Internal leak.
SOLUTION
Contact an authorized W&H service partner.

Whom should I contact to validate and maintain my sterilizer?

Validation shall be carried out by an official authority. Maintenance tasks shall be carried out by a qualified and authorised technician.

How do I change consumable components on my sterilizer?

Consumable replacement instructions are provided in the Instructions for Use, chapter “Maintenance”. In addition, a video description is available: • in the sterilizer, in the maintenance section of the menu (only for Lisa); • in the Consumables & Accessories and Video Tutorial section of this web site.

How do I clean the water tanks and what products should I use?

Water tank cleaning instructions are provided in the Instructions for Use, chapter “Maintenance”. Information and videos relating to the cleaning of the water tanks and cleaning products can also be found on the Video Tutorial section of this web site.

Which water quality should I use for my sterilizer?

The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 15 µS/cm should be used for your W&H sterilizer. The Multidem system is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use).

Should I pouch/wrap my instruments and how long can I store them after sterilization?

To ensure that your instruments are stored in a sterile state from their successful sterilization until they are used, W&H recommends wrapping them in suitable sterile barrier systems before sterilization. The recommended storage period can be found in the recommendations of the wrapping material manufacturer. For further information, please contact your dealer.

Do I need to carry out periodic testing on my Lisa/Lina/Lara?

Lisa/Lina/Lara features test cycles (B&D/Helix test, Vacuum test). Compulsory and frequency of testing are regulated by local/national guidelines.

What is validation?

Validation is a testing procedure carried out by an official authority, proving the effectiveness of your sterilizer. Compulsories and frequency of validation are regulated by local/national guidelines.

Do I need to document the results of all periodic tests?

W&H recommends recording all periodic tests, repairs and modifications on the sterilizer in a logbook including date and signature of the person who carried out the test or other activity. Compulsories of recording is regulated by local/national guidelines.

How long should I archive the documentation of regular tests?

Keep the results according to your country/regional specific laws and guidelines. Those records can be of assistance in case of service as well.

Straight & Contra-angle Handpieces Straight & Contra-angle Handpieces

Technical Handpiece 945 (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Laboratory Devices Laboratory Devices

Perfecta 300/600 (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Perfecta 900 (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Cordless Devices Cordless Devices

Entran (9)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can an external apex locator be operated with the Entran?

We recommend taking measurements with an external apex locator directly on the file, if this is uncoupled.

For which file systems can Entran be used?

You can use any file systems on the market which are suitable for rotating preparation, have a 2.35 mm standard sheath and a torque of at least 0.5 Ncm.

What happens if the file cannot be freed using the auto forward / auto reverse mode?

Once the set torque is reached, the set mode (auto forward or auto reverse) is activated and Entran makes five attempts to remove the file. If it is not successful, Entran stops. It is recommended to restart it. If the file still cannot be removed, it should be released from the chuck system and removed manually.

Can I use Entran with a Gates bur?

It is not recommended to use Entran with a Gates Glidden bur as the low speed is insufficient to guarantee high removal efficiency.

Where can I find the Entran torque settings that correspond to my file system?

In addition to the overview of the values on the file cards included in the Entran's scope of delivery, the file manufacturers also provide information on the files' maximum torques.

How long can you work on one battery charge?

One fully charged battery is enough for over 20 treatments.

Can the Entran stop working during treatment if the battery runs out?

When the battery indicator starts flashing, there is enough time to finish the treatment. Afterwards, the ENTRAN needs to be charged.

How long does it take to charge the battery?

If the battery is completely dead, it will take approximately 90 minutes to charge fully.

Straight & Contra-angle Handpieces Straight & Contra-angle Handpieces

Endea (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Endea Endo Cursor (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Endo NiTi (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Accessories Accessories

LisaSafe (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

LisaWare (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

/products/hygienicmaintenance/accessories/mulitport (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

/products/hygienicmaintenance/accessories/print (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Seal2 (2)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Should I pouch/wrap my instruments and how long can I store them after sterilization?

To ensure that your instruments are stored in a sterile state from their successful sterilization until they are used, W&H recommends wrapping them in suitable sterile barrier systems before sterilization. The recommended storage period can be found in the recommendations of the wrapping material manufacturer. For further information, please contact your dealer.

Sprint (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Service Oil F1 (6)
Which aerosol is used in the W&H F1 spray can and what properties does it have?

A mixture of propane and butane (standard aerosol in all spray cans). It contains no CFCs and as such is environmentally-friendly.

How should I dispose of empty cans?

In accordance with the national regulations for aerosol cans. More information on disposal can be found on the safety datasheet.

Can W&H Service Oil F1 be sterilized?

Yes, W&H has checked the sterilizability precisely. W&H Service Oil F1 was not found to influence the sterilization of the instruments in any way.

Can I use any oil to lubricate my W&H instruments?

W&H recommends that W&H instruments are lubricated with W&H oil which has been designed and developed to enhance the performance of your W&H instrument.

Up to what maximum temperature is the oil stable without problems?

W&H Service Oil F1 has long­term stability between –30 oC and +160 oC.

Why is W&H oil better than other lubricants?

Extensive research and testing produced a formula which best covers the extreme demands of dental instruments. It consists of an all-synthetic special oil of the highest purity supplemented by the specially developed additive package.

Reprocessing Devices Reprocessing Devices

Assistina (2)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Correct use of Assistina 301plus.

Please find a detailed description about first startup, regular use and maintenance in the user manual. Furthermore you can find video tutorials about Assistina 301plus.

Assistina 301 plus (5)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

How can I check if my Assistina 301 is working correctly?

Check/replace the O-rings on the motor coupling/adapter (FAQ video Assistina O-rings). Ensure that the Start button is held depressed for at least 2 seconds when starting a programme. When the button is pressed, the green ball should be visible on the right in the functional display (cleaning solution). When the button is then released again, the green ball should be shown on the left. This procedure is also demonstrated in the FAQ video "Using Assistina". A detailed functional check can be found in the "weekly checklist" and in the "Test and functional check" section of the instructions for use.

Correct use of Assistina 301plus.

Please find a detailed description about first startup, regular use and maintenance in the user manual. Furthermore you can find video tutorials about Assistina 301plus.

How often should the filter in the supply air be changed (Assistina 301 plus)?

Annually or if the filter is full of debris (visual check - filter should be white). Please see video about changing the filter).

Assistina TWIN (9)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Which processing steps are carried out in the Assistina TWIN?

  • Cleaning the spray channels with W&H Activefluid
  • Lubricating the rotating parts with W&H Service Oil
  • Throughout the maintenance process, potentially contaminated aerosols are extracted from the process chamber and the exhaust air is cleaned using a HEPA filter.

What instrument adaptors are available for the Assistina TWIN?

All adaptors that are suitable for the Assistina 3x2/3x3 can also be used in the Assistina TWIN. There is only one exception: the RM/ISO adaptor for the Assistina 3x2/3x3 is not compatible with the Assistina TWIN. The HPI adaptor can be used for the Assistina TWIN instead.

Why does the Assistina TWIN have a HEPA filter?

During the maintenance process in the Assistina TWIN, the rotating parts are lubricated with oil and the spray channels rinsed with cleaning solution. These liquids are introduced to the handpieces using compressed air, which produces aerosols that may contain potentially contaminated body fluids (e.g. blood and saliva). In order to ensure that the apparatus poses no risk to the user, the patient or third parties, the law stipulates that aerosols must be prevented from leaking out of the apparatus. We make sure of this by using active suction and the HEPA filter. This HEPA filter must of course be changed regularly, which is why the lifespan of the filter is matched exactly to the capacity of the two cartridges. The HEPA filter therefore reaches the end of its service life once one set of cartridges has been used.

What does HEPA mean, and what is filtered out of the air?

HEPA is short for 'High Efficiency Particular Air', and the filter is classified as HEPA class E11. This means that the filter retains all particles larger than 1 µm, which includes, among other things, a wide range of bacteria and viruses, suspended particles such as dust and respirable aerosols.

How does the user know when the TWIN Care Set needs to be replaced?

The intelligent process monitoring system documents the number of maintenance cycles that have been performed, thereby automatically calculating the number of instruments that can be serviced with the remaining quantity of fluid. The user receives an alert 300 cycles before the cartridge needs replacing (the oil and cleaner LEDs on the top of the unit turn yellow in colour).

How often does the TWIN Care Set need to be replaced?

The consumption volumes for each instrument are 0.07 ml of oil and 0.07 ml of cleaning solution. This gives a maximum capacity of 2857 cycles. In reality, the value is around 2800 to 2850 cycles, as initial filling is also required and the fill quantity of the cartridges is subject to certain tolerances that are regulated by the applicable standards.

How do you replace the TWIN Care Set?

The two cartridges and the filter can be changed easily without any tools. As with the Assistina 3x2/3x3, the fluid is supplied via tapping needles in the bottom of the cartridge spaces that penetrate the cartridge membrane, thereby drawing the fluid out of the cartridge. The two cartridges have different shapes to ensure that the two fluid types cannot be mixed up. In addition, it is only possible to install the HEPA filter incorrectly by using force, which is not necessary.

Why is there no rotational lubrication option in the Assistina TWIN?

The oil is atomized in the Assistina TWIN before it is enters the instrument. This ensures full coverage of the gear parts, eliminating the need for technically complex and time-consuming rotational lubrication. However, there is no negative impact on the maintenance quality: the results of a maintenance operation correspond to those achieved with the Assistina 301 Plus.

Water Treatment Devices Water Treatment Devices

Dist (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Multidem (2)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Which water quality should I use for my sterilizer?

The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 15 µS/cm should be used for your W&H sterilizer. The Multidem system is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use).

Osmo (2)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Which water quality should I use for my sterilizer?

The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 15 µS/cm should be used for your W&H sterilizer. The Multidem system is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use).

Straight & Contra-angle Handpieces Straight & Contra-angle Handpieces

Contra-angles (11)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can current contra-angles be attached to new motors?

Yes. All W&H surgical contra-angles and handpieces can be attached to the new motor EM-19.

Can the new contra-angles be attached to old motors?

No. In order to deliver the best balance we shortened the inner coupling length. Therefore contra-angles with only an L suffix cannot be attached to old motors

Can our customers disassemble the new contra-angles

Yes. At W&H the letter "S" always communicates, that the surgical contra-angle is disassemble. The letter "I" communicates, that the surgical contra-angle cannot be disassembled (e.g. WS-75 L vs. WI-75)

Why doesn't the light on my LED G contra-angle handpiece work when I am positioning an implant?

The generator in the contra-angle handpiece requires at least 300 rpm to produce enough electricity for the LED. The rotary speed is between 15 and 50 rpm when positioning an implant.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Is the removable spray clip of my surgical hand piece sterilizable?

Yes. In order to extend the live span of the clip, W&H recommends to remove the clip from the hand piece and sterilize it separately (hand piece and clip in one pouch but separated).

What is the difference between WI-75 and WS-75?

Both assure maximum performance. The WS-75 can be dismantled and therefor it can be cleaned more thoroughly.

Can LED instruments with generator be sterilized?

Yes, W&H handpieces with LED and generator are both sterilizable sterilizable and thermodisinfectable thermodisinfectable.

Which material is used at W&H surgical instruments?

Internal and external parts are of high quality stainless steel (including the contra-angle handpiece head).

How to dismantle the handpiece

See detailed description in user manual or Video.

Handpieces (10)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can current contra-angles be attached to new motors?

Yes. All W&H surgical contra-angles and handpieces can be attached to the new motor EM-19.

Can the new contra-angles be attached to old motors?

No. In order to deliver the best balance we shortened the inner coupling length. Therefore contra-angles with only an L suffix cannot be attached to old motors

Can our customers disassemble the new contra-angles

Yes. At W&H the letter "S" always communicates, that the surgical contra-angle is disassemble. The letter "I" communicates, that the surgical contra-angle cannot be disassembled (e.g. WS-75 L vs. WI-75)

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

What is the minimum shaft lenght of the bur for the S-11?

The shaft of the bur should be at least 44mm long (ISO-shaft 104).

Can LED instruments with generator be sterilized?

Yes, W&H handpieces with LED and generator are both sterilizable sterilizable and thermodisinfectable thermodisinfectable.

Which material is used at W&H surgical instruments?

Internal and external parts are of high quality stainless steel (including the contra-angle handpiece head).

What is the minimum shaft lenght of the bur for the S-12?

The shaft of the bur should be at least 53mm long.

How to dismantle the handpiece

See detailed description in user manual or Video.

Saw Handpieces Saw Handpieces

Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

How to dismantle the handpiece

See detailed description in user manual or Video.

Prosthodontic Screwdriver Prosthodontic Screwdriver

Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Surgical Devices Surgical Devices

Elcomed (11)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Why doesn't the light on my LED G contra-angle handpiece work when I am positioning an implant?

The generator in the contra-angle handpiece requires at least 300 rpm to produce enough electricity for the LED. The rotary speed is between 15 and 50 rpm when positioning an implant.

Does the motor need to be greased?

No, the Implantmed/Elcomed motor does not need greasing. The motor bearings require no maintenance. Any additional greasing would reduce the service life of the bearings.

Can my Implantmed/Elcomed motor be processed via thermal washer disinfector?

Yes, if the thermal washer disinfector has a drying cycle and the motor bears the sign that it is "Thermo washer disinfectable".

Does my W&H unit need to be serviced.

Regular servicing of function and safety including the accessories is necessary and should be carried out at least once every three years, unless shorter intervals are prescribed by law. Detailed information can be found in the user manual at chapter "Servicing".

Can handpieces from another manufacturer be used on a W&H surgical motor (implantmed / elcomed)?

For applications which do not require accurate torque (drilling, grinding,…), any handpiece with ISO 3964 connection can be used. Please be informed that hand pieces from other manufacturers might not be able to handle the torque of your unit/motor and therefore might get damaged.

Can other brands of tubing be used?

Not recommended. Due to different specifications (material, dimensions) it could cause problems like leakage, insufficient cooling or even damage the unit. For propper tubing see "correlation of tubing" or user manual.

How to insert irrigation tube?

Please find a detailed description in the user manual at chapter "Starting operation - General".

How can the unit / motor be cleaned / sterilized?

Please find a detailed description in the user manual at chapter "Hygiene and Maintenance".

Implantmed (27)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

What does ISQ stand for?

The abbreviation ISQ stands for Implant Stability Quotient. It is a value between 1 and 100 and gives the surgeon an insight of the implant stability after placing the implant. With the ISQ value the surgeon can monitor the osseointegration.

How does the measurement of the ISQ work?

> To measure the ISQ of an implant, you first screw a so called SmartPeg into the placed implant. The SmartPeg, with its magnet on top, works like a small tuning fork. The magnet on the SmartPeg is ‘hit’ with magnetic pulses, from the probe, which makes the SmartPeg vibrate. Due to the stiffness in the interface between the implant surface and the bone the SmartPeg will vibrate accordingly. The more dense the bone is the higher stability and the higher ISQ value.
isq scale

Where can I buy the SmartPegs?

Please contact your local W&H partner
The sale of SmartPegs will be defined per country
The surgeon will receive 5 free SmartPegs. A voucher will be provided with the delivery of the product.

What’s the difference between torque and ISQ?

Torque is a one time, static measurement at the time of placement of the implant and cannot be repeated later on in a non-invasive way. Osstell ISQ measures the lateral stability of the implant and the measurements can be repeated in a non-invasive, dynamic way to monitor the development of osseointegration.

Is every new Implantmed compatible with the W&H Osstell ISQ module?

Yes. All control units SI-1023, SI-1015 and SI-1010 can be upgraded with the W&H Osstell ISQ module

Can the surgeon upgrade the unit by themself or does the unit need technical service?

The surgeon or dental nurse can easily attach the module to the right side of the Implantmed with the help of the provided quick manual. The module is plug-n-play via a USB connection.Implantmed with ISQ model comparison

Are previous Implantmed motors compatible with the new Implantmed or vice versa?

No. The new motor has a new technological basis and is the shortest available

What does the LC in EM-19 LC stand for, is there a LED in the motor?

The LC stands for Light Contacts. This means that we have integrated an electrical connection into our new motors. The Light Contacts deliver power to our new contra-angles to offer our customers the best light at any rotation speed. For oral surgery handpieces from W&H, the LED remains in the head of the contra-angles

Can current contra-angles be attached to new motors?

Yes. All W&H surgical contra-angles and handpieces can be attached to the new motor EM-19.

Can the new contra-angles be attached to old motors?

No. In order to deliver the best balance we shortened the inner coupling length. Therefore contra-angles with only an L suffix cannot be attached to old motors

Can our customers disassemble the new contra-angles

Yes. At W&H the letter "S" always communicates, that the surgical contra-angle is disassemble. The letter "I" communicates, that the surgical contra-angle cannot be disassembled (e.g. WS-75 L vs. WI-75)

Are old cable foot controls compatible with the new unit or vice versa?

No. The new cable foot control S-N2 is based on the industrial CAN standard. So connecting the old foot control S-N1 is not possible.

How does it work to wirelessly control the Implantmed and the Piezomed?

W&H introduces a new concept in oral surgery and implantology. Via dongles (receiver), which can be connected to the unit by the doctor, the wireless foot control S-NW communicates with the surgical units of W&H.wireless foot control

Can previous Implantmed units be retrofitted with the wireless foot control

It depends but basically yes. The following units can be retrofitted
Implantmed SI-923 REF16929000
Implantmed SI-915 REF16929001
Elcomed SA-310 REF15933100/15933101/15933102/15933103
Please contact your local W&H Partner to find out if the wireless foot control is already registered in your country

Is it possible to set the motor speed with the program for positioning an implant?

No, the speed in program P4 is 15 rpm when in forward operation and 30 rpm in reverse operation. In program P5 (thread cutter function) the speed is 20 rpm in both forward and reverse operation and only the torque can be set.

Why doesn't the light on my LED G contra-angle handpiece work when I am positioning an implant?

The generator in the contra-angle handpiece requires at least 300 rpm to produce enough electricity for the LED. The rotary speed is between 15 and 50 rpm when positioning an implant.

Does the motor need to be greased?

No, the Implantmed/Elcomed motor does not need greasing. The motor bearings require no maintenance. Any additional greasing would reduce the service life of the bearings.

Can my Implantmed/Elcomed motor be processed via thermal washer disinfector?

Yes, if the thermal washer disinfector has a drying cycle and the motor bears the sign that it is "Thermo washer disinfectable".

Does my W&H unit need to be serviced.

Regular servicing of function and safety including the accessories is necessary and should be carried out at least once every three years, unless shorter intervals are prescribed by law. Detailed information can be found in the user manual at chapter "Servicing".

How can I adjust the torque?

The torque can be adjusted in P4 & P5 only. In- or decreaseing is done via either "+" or "-" button. A detailed description (factory settings, adjstable range,…) can be found in the user manual.

Can handpieces from another manufacturer be used on a W&H surgical motor (implantmed / elcomed)?

For applications which do not require accurate torque (drilling, grinding,…), any handpiece with ISO 3964 connection can be used. Please be informed that hand pieces from other manufacturers might not be able to handle the torque of your unit/motor and therefore might get damaged.

Can other brands of tubing be used?

Not recommended. Due to different specifications (material, dimensions) it could cause problems like leakage, insufficient cooling or even damage the unit. For propper tubing see "correlation of tubing" or user manual.

How to insert irrigation tube?

Please find a detailed description in the user manual at chapter "Starting operation - General".

How can the unit / motor be cleaned / sterilized?

Please find a detailed description in the user manual at chapter "Hygiene and Maintenance".

Piezomed (8)
How does it work to wirelessly control the Implantmed and the Piezomed?

W&H introduces a new concept in oral surgery and implantology. Via dongles (receiver), which can be connected to the unit by the doctor, the wireless foot control S-NW communicates with the surgical units of W&H.wireless foot control

How long is the useful service life of the instrument detection?

The instrument detection is located in the LED socket and is automatically replaced at the same time as the LED socket.

Is it necessary for the torque driver to engage audibly when tightening the instrument?

Yes, it must engage audibly once, as otherwise the required torque is not achieved.

How long is the useful service life of the LED?

The user must replace the LED socket as soon as the protective coating on the LED discolours and the luminous power is impaired as a result. The length of time this takes can differ depending on the type of steriliser or sterilization process.

Can Piezomed instruments also be used on third-party devices?

No
a. Different thread
b. Third-party device cannot find the correct resonance point – instrument fails to oscillate

How long do the instruments last and when should they be replaced?

The useful service life of the instruments is determined by the length of time they are used reprocessing and sterilization cycles have only marginal influence.
a. Instruments need to be replaced
- If there is a loss of power while working
- Where there is visible damage on the working part or the shank of the instrument.
b. Saws must be replaced if
- Teeth are broken off
- Teeth are worn
c. Diamond-coated instruments must be replaced
- As soon as the diamond coating is worn

How are the instruments prepared for cleaning?

a. Preparation in the ultrasonic bath:
- Place the instruments in the instrument tray and lower into the ultrasonic bath.
- Use cleaning agents and disinfectants suitable for hand instruments (probes, mirrors, forceps, etc.).
DO NOT USE a bur bath, as this is very aggressive.
- After cleaning in the ultrasonic bath, rinse adequately with water to remove any remnants of the cleaning agent and disinfectant from the coolant channels.
- Blow dry with compressed air after rinsing
- Replace dried instruments in the instrument tray and package for sterilization

b. Mechanical preparation in the cleaning unit and disinfector
- Use the cleaning adapter for cleaning units and disinfectors (see Instructions for Use – Accessories)
- After preparation in the cleaning unit and disinfector, check that the coolant channels are dry and, if necessary, dry again with compressed air.

Can third-party instruments be used on the Piezomed?

No
a. Different thread
b. The Piezomed instrument detection cannot detect third-party instruments

Air Scaler Air Scaler

Proxeo (4)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

How does the new W&H Click & Pull system work? How do I remove a dental turbine?

Use your thumb and index finger to retract the coupling's retention sleeve. The turbine can now be removed from the coupling without any problems. Pulling forcefully on the dental turbine can cause damage. If excessive force is required to remove the turbine, verify that the retention sleeve on the coupling can be moved without any problems.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Straight & Contra-angle Handpieces Straight & Contra-angle Handpieces

Proxeo (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Proxeo TWIST (2)
Can I use any Prophy cup that is available on the market for the WP-66 W?

In order to benefit from the advantages of the LatchShort system and to support the longevity of the contra-angle handpiece (WP-66 W), we recommend using W&H Prophy cups. However, it is possible for Prophy cups from standard latch systems (with a shaft of 2.35 mm) to be used.

Why should I use a prophylaxis contra-angle handpiece (WP-66 W)?

Generally, prophylaxis contra-angle handpieces feature a seal on the head that prevents the ingress of saliva and paste. This extends the lifespan of the contra-angle handpiece.

The most effective removal of discolouration that at the same time protects the enamel and dentine as much as possible, depends on the polishing speed, i.e. revolutions per minute, among other things. With a speed ratio of 4:1 (four revolutions of the motor mean one revolution of the cup), the revolution speed of the Prophy cup is reduced. This means during application, there is no risk of paste splattering.

Ozone Devices Ozone Devices

Prozone (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Piezo Scaler Piezo Scaler

Pyon 2 (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Tigon (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Tigon+ (4)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Are W&H tips (e.g. 1U) compatible with the new W&H high-speed mounting system?

No, they are not compatible because they have different threads.

How do I know which tip goes with which handpiece?

There are symbols on the tip, the tip changer and the handpiece identifying which system they belong to.

Proxeo Ultra (14)
How can I recharge the wireless foot control (PB-530)?

The wireless foot control can be recharged by plugging the power pack directly into the device.

How can I connect the wireless foot control with the Proxeo ULTRA PB-530?

Set the power regulator to “OFF”. Connect the control unit and the foot control using the cable. Press and hold the function button for 5 seconds.

Can I treat patients with cardiac pacemakers with W&H Piezo scalers?

Yes, the compatibility of these devices has been assessed in application.

How long does the foot control’s rechargeable battery last?

The rechargeable battery lasts approx. two months based on average use (5 working days with 8–12 patients/day for 4–6 minutes).

Should I always call my service department first before I send devices/instruments for repair?

If you are unsure of the cause of the problem, it is better to contact your service department first and talk to a technician. Together with the technician, malfunctions can sometimes be resolved or it may be determined which items need to be sent for repair.

Are W&H tips (e.g. 1U) compatible with the new W&H high-speed mounting system?

No, they are not compatible because they have different threads.

How do I know which tip goes with which handpiece?

There are symbols on the tip, the tip changer and the handpiece identifying which system they belong to.

Can the handpiece be prepared in the sterilizer?

Yes, as long as your handpiece or contra-angle handpiece carries the mark “sterilizable up to the stated temperature”.

Is the handpiece thermo washer disinfectable?

Yes, as long as your handpiece or contra-angle handpiece carries the mark “thermo washer disinfectable”.

Air Motor Air Motor

Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Does the air motor need to be greased?

Yes, the air motor must be greased as described in the "Hygiene and care" section of the instructions for use.

Couplings Couplings

RM-34 LED for Multiflex (1)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Roto Quick (6)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can I use all instruments which fitted the old Roto Quick coupling (924, ...) with the new RQ-24 too?

Yes. All existing and new instruments can be used with couplings from both the old and the new generations.

How does the new W&H Click & Pull system work? How do I remove a dental turbine?

Use your thumb and index finger to retract the coupling's retention sleeve. The turbine can now be removed from the coupling without any problems. Pulling forcefully on the dental turbine can cause damage. If excessive force is required to remove the turbine, verify that the retention sleeve on the coupling can be moved without any problems.

Why is a 6-hole connection required for the use of an LED turbine?

A 6-hole connection for the turbine tubing is necessary to supply the turbine with electricity via electrical contacts. Other connections do not provide a power supply.

Are there other couplings than the Roto Quick available?

Yes. W&H also offers the "RM-34 LED" for Multiflex® connection.

Can the W&H coupling be thermodisinfected and sterilized?

No, thermodisinfection of the coupling is not permitted; sterilization in steam sterilizers can be applied at a temperature of 135°C. Hot air sterilization and/or cold sterilization (placing in liquids) are not approved. sterilization

Electric Motor Electric Motor

Electric Motor (EM-E6) (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Does the electric motor need to be greased?

No, the motor bearings require no maintenance. Any additional greasing would reduce the service life of the bearings.

I've got a micromotor without light. Do I have to change the micromotor and the contra-angle to have light?

No. You can purchase an Allegra LED G contra-angle which has its own light generator and a LED. No further investment necessary.

LED Upgrade Set (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Does the electric motor need to be greased?

No, the motor bearings require no maintenance. Any additional greasing would reduce the service life of the bearings.

I've got a micromotor without light. Do I have to change the micromotor and the contra-angle to have light?

No. You can purchase an Allegra LED G contra-angle which has its own light generator and a LED. No further investment necessary.

Electric Motor (EM-12 L) (10)
Does the electric motor need to be lubricated with oil?

No, the motor bearings require no maintenance. Any additional oil service would reduce the service life of the bearings.

Should I always call my W&H service partner in advance before sending devices/instruments in for repair?

If you are not completely sure of the cause of the problem, it is better to contact your W&H service partner first and speak to a technician. It is sometimes possible to resolve malfunctions together with the technician and decide what needs to be sent in for repair.

What is a brushless electric motor and what benefits does it offer me as a user?

The brushless electric motor is considerably less susceptible to wear than a brush motor, which in turn translates to minimised service and maintenance work. This also means less downtime for the user when servicing proves necessary.

Which contra-angle handpiece series is recommended for the EM-12 L electric motor?

The W&H Synea series – the glass rod elements are optimally suited for use together with the EM-12 L motor and its integrated LED+.

How can I integrate the EM-12 L electric motor into my unit as a Built-in version?

The EM-12 L electric motor can be integrated into a dental unit by selected dental unit manufacturers or their service technicians.

How do I connect the EM-12 L electric motor to my unit as an Add-on?

To connect the EM-12 L electric motor to your dental unit as an Add-on you require a free turbine hose on your dental unit and the possibility of connecting the control to the mains via the included power supply unit. You can control the EM-12 L electric motor using the foot control of your dental unit.

Can I sterilize my EM-12 L electric motor in a sterilizer?

Yes, if your EM-12 L electric motor features the symbol “Sterilizable up to the stated temperature”. sterilisierbar

Does the Built-in version of the EM-12 L electric motor require maintenance?

The Built-in electronic component does not require separate maintenance. However, regular servicing together with the rest of the dental unit should be performed at the intervals prescribed by the pertinent legislation. This makes it possible to guarantee proper function and safety. More detailed information on this topic can be found in the “Service” section of the respective instructions for use.

Does the Add-on version of the EM-12 L electric motor require maintenance?

The EM-12 L electric motor as an Add-on version including accessories requires a regular check once every three years unless shorter intervals are prescribed by law. The regular service must only be performed by an authorised W&H service partner. More detailed information on this topic can be found in the “Service” section of the instructions for use.

Straight & Contra-angle Handpieces Straight & Contra-angle Handpieces

Alegra (11)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

What is the difference between the Alegra contra-angle handpieces WE-56 T and WE-56?

Alegra contra-angle handpieces designated with the letter "T" are significantly lighter in weight. Alegra contra-angle handpieces that are not designated with the letter "T" have been approved for automated thermo washer disinfection.

Can the HE-43 E handpiece be employed in surgical applications?

The handpieces in the new Alegra range have been tested and approved for the following applications removing cariogenic materials, preparing cavities and crowns, removing fillings and finishing tooth and restoration surfaces. The use of the handpieces in other application areas is not permitted and the user bears all responsibility in cases where this instruction is disregarded.

Is more heat generated by the light source when LED technology is employed?

No, because they are usually operated with coolant air. In addition, the LED contra-angle handpieces are equipped with an internal spray function, which guarantees additional cooling.

What are the advantages of the new Alegra instruments?

Compatible LED light – the instruments in the new Alegra range have LED light, which is supplied with energy by an integrated generator. The instruments are therefore independent of the light supply of the motor and the dental unit and offer the possibility of working with light compatible with any unit. The technology of the integrated generator means that there is only illumination when the instrument is running.

For what reason may the LED fail to light up?

Because the energy for the LED light in the new Alegra instruments is generated by an integrated generator, the brightness of the LED depends on the motor speed (at least 9.000rpm).

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Why does the WE-99 contra-angle handpiece have a transmission ratio of 1:4.5?

The optimum speed of fast-running burs can easily be achieved using the WE-99.

Can LED instruments with generator be sterilized?

Yes, W&H handpieces with LED and generator are both sterilizable sterilizable and thermodisinfectable thermodisinfectable.

Can the new Alegra instruments be connected to motors with a light supply?

Yes, the straight and contra-angle handpieces of the new Alegra range can be used on any motor with an ISO connection. .

Synea (3)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Can my W&H handpiece be processed via sterilizer.

Yes, providing that your W&H handpiece carries the relevant sterilization symbol. sterilization symbol

Can my W&H handpiece be processed via thermal disinfector and sterilizer.

Yes, providing that your W&H instrument carries the relevant thermal disinfection and sterilization symbol and the thermo disinfector should have a drying cycle.

Turbines Turbines

Alegra (11)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

I have a new Alegra LED turbine handpiece, which is supplied with power by a Roto Quick coupling with integrated generator. What should I pay attention to when servicing the Roto Quick coupling with generator?

The generator in the coupling is equipped with ball bearings, which must be lubricated once a month. This sufficiently removes any soiling from the generator.

Does the Alegra turbine handpiece also product light when used on optic dental units?

Alegra LED turbine handpieces are exclusively intended for use with Roto Quick couplings RQ-54 / RQ-53. Alegra LED turbine handpieces cannot be coupled onto Roto Quick couplings RQ-24 / RQ-34.

Which burs can be used with W&H turbines?

Turbines with standard head sizes (models XX-98): 19 mm - 25 mm Turbines with small head sizes (models XX-97): 16 mm - 21 mm

The cutting part diameter for both head sizes is restricted to max. 2 mm. Please observe the technical data provided by the bur manufacturer. When using longer, rotary instruments for special treatment indications, the user must always select the operating conditions correctly in order to avoid placing the user, patient or anybody else at risk.

How does the new W&H Click & Pull system work? How do I remove a dental turbine?

Use your thumb and index finger to retract the coupling's retention sleeve. The turbine can now be removed from the coupling without any problems. Pulling forcefully on the dental turbine can cause damage. If excessive force is required to remove the turbine, verify that the retention sleeve on the coupling can be moved without any problems.

My dental turbine doesn't have enough power/speed?

Please check drive air pressure on your unit and maintenance of the instruments (Synea with RQ connection = 3 +/- 0,3 bar, with Multiflex® connection 2,5 - 4 bar). For all Alegra turbines the pressure needs to be set between 2,5 - 2,8 bar.

Can my W&H turbine be processed via sterilizer?

Yes, providing that your W&H turbine carries the relevant sterilization symbol. sterilization symbol

Can my W&H turbine be processed via thermal disinfector?

Yes, providing that your W&H turbine carries the relevant thermal disinfection symbol and the thermo disinfector should have a drying cycle. thermal disinfection symbol

I've just bought a new W&H turbine? Should I call a serviceman for my unit to install it?

Yes, it is neccesary to properly adjust the air/water pressure and if applicable the voltage for the turbine.

At the moment I have a W&H turbine without light. How can I have light in my dental turbine?

If there is electricity at the end of turbine hose, you need a proper coupling and a turbine with light (example: RQ-24 and TK-97 L). If no electricity is available, the simplest way is to buy a W&H Alegra turbine with LED and its Roto Quick coupling (e.g.: TE-97 LQ and RQ-54). It doesn't require any other investment in the dental unit.

What is the maximum length of the rotary instruments?

25 mm for the standard turbine (XX-98 modells) and 21 mm for turbines with small head (XX-97 modells). When using longer rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.

Synea (11)
Should I call the service station before sending equipment for repair?

If you are not sure what the cause of the problem is, it is better to call the service station and talk to a technician. Together with the technician it can be determined what needs to be sent in and sometimes it is possible to even solve the problem right away.

Which burs can be used with W&H turbines?

Turbines with standard head sizes (models XX-98): 19 mm - 25 mm Turbines with small head sizes (models XX-97): 16 mm - 21 mm

The cutting part diameter for both head sizes is restricted to max. 2 mm. Please observe the technical data provided by the bur manufacturer. When using longer, rotary instruments for special treatment indications, the user must always select the operating conditions correctly in order to avoid placing the user, patient or anybody else at risk.

How does the new W&H Click & Pull system work? How do I remove a dental turbine?

Use your thumb and index finger to retract the coupling's retention sleeve. The turbine can now be removed from the coupling without any problems. Pulling forcefully on the dental turbine can cause damage. If excessive force is required to remove the turbine, verify that the retention sleeve on the coupling can be moved without any problems.

Why is a 6-hole connection required for the use of an LED turbine?

A 6-hole connection for the turbine tubing is necessary to supply the turbine with electricity via electrical contacts. Other connections do not provide a power supply.

My dental turbine doesn't have enough power/speed?

Please check drive air pressure on your unit and maintenance of the instruments (Synea with RQ connection = 3 +/- 0,3 bar, with Multiflex® connection 2,5 - 4 bar). For all Alegra turbines the pressure needs to be set between 2,5 - 2,8 bar.

Can my W&H turbine be processed via sterilizer?

Yes, providing that your W&H turbine carries the relevant sterilization symbol. sterilization symbol

Can my W&H turbine be processed via thermal disinfector?

Yes, providing that your W&H turbine carries the relevant thermal disinfection symbol and the thermo disinfector should have a drying cycle. thermal disinfection symbol

I've just bought a new W&H turbine? Should I call a serviceman for my unit to install it?

Yes, it is neccesary to properly adjust the air/water pressure and if applicable the voltage for the turbine.

At the moment I have a W&H turbine without light. How can I have light in my dental turbine?

If there is electricity at the end of turbine hose, you need a proper coupling and a turbine with light (example: RQ-24 and TK-97 L). If no electricity is available, the simplest way is to buy a W&H Alegra turbine with LED and its Roto Quick coupling (e.g.: TE-97 LQ and RQ-54). It doesn't require any other investment in the dental unit.

What is the maximum length of the rotary instruments?

25 mm for the standard turbine (XX-98 modells) and 21 mm for turbines with small head (XX-97 modells). When using longer rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.

Is the new LED turbine from the Synea series e.g. compatible with the existing 924 couplings?

Yes, the new generation of turbines can be operated with both the existing and the new couplings.

Primea (18)
Can my Primea Advanced Air Turbine be sterilized in a sterilizer?

Yes, if your Primea Advanced Air Turbine is labelled with the symbol "Sterilizable up to the stated temperature". sterilization symbol

Can my Primea Advanced Air Turbine be prepared in a thermo washer disinfector?

Yes, if your Primea Advanced Air Turbine is labelled with the symbol "thermo washer disinfectable". thermal disinfection symbol

I have just purchased a new W&H Primea Advanced Air Turbine. How can I activate it?

It is not sufficient to purchase the Primea Advanced Air Turbine alone. In order to be able to operate it, you need the entire Primea Advanced Air System – consisting of a turbine, control system, user interface (UI) and the supply hose with Roto Quick coupling. You can add this as an add-on or built-in solution to/in your dental unit.

In which versions can I purchase the Primea Advanced Air System? What are my installation options?

W&H can offer you the Primea Advanced Air System as an external add-on which you can connect to your dental unit. To do this, you need a spare supply hose for your dental unit, a minimum operating pressure of 5 bar and the possibility to connect the control system to the mains power supply. Please contact your authorized W&H service partner to check the inlet pressure of the additional air supply hose. The Primea Advanced Air Built-in System is integrated into a dental unit by selected dental unit manufacturers or their service technicians.

Are there different Primea Advanced Air Turbines?

Yes, the RG-97 L is equipped with an LED to illuminate the treatment area. The RK-97 L offers you shadowless illumination of the treatment site thanks to 5x Ring LED+. Both turbines have a mini-head and five spray ports, as well as a scratch-proof surface coating.

How can I integrate the Primea Advanced Air Built-in into my unit?

The Primea Advanced Air System is integrated into a dental unit by selected dental unit manufacturers or their service technicians.

How do I connect the Primea Advanced Air Add-on to my unit?

You can connect the external Primea Advanced Air System to the dental unit. To do this, you need a spare supply hose for your dental unit, a minimum operating pressure of 5 bar and the possibility to connect the control system to the mains power supply. Please contact an authorized W&H service partner to check the inlet pressure of the additional air supply hose.

Should I always call my authorized W&H service partner first before I send devices/instruments for repair?

If you are unsure of the cause of a problem, it is better to contact your authorized W&H service partner first and talk to a service technician. Together with the service technician, malfunctions may be resolved or it may be determined which items should be sent for repair.

What do I do if my Primea Advanced Air Turbine does not achieve sufficient power/speed?

Please contact your authorized W&H service partner to check the Primea Advanced Air System.

Which rotary instruments can be used with Primea Advanced Air Turbines?

Primea Advanced Air Turbines with small heads (Model RG-/RK--97 L): 16 mm to 21 mm The diameter of the working part is limited to a maximum of 2 mm. Follow the operating instructions of the manufacturer. When using longer or shorter rotary instruments the user must ensure by correct selection of the operating conditions, that there is no danger to the user, patient or third parties.

Which speed setting should I use on the Primea Advanced Air System?

Within the adjustable speed range of 60,000 to 320,000 revolutions, you can set the maximum permitted speed for the respective rotary instrument as specified by the manufacturer.

What is the maximum rotary instrument length approved by W&H for Primea Advanced Air Turbines?

Primea Advanced Air Turbines with small heads (Model RG-/RK-97 L): 16 mm to 21 mm

How does the Roto Quick coupling's W&H Click & Pull System work? How do I remove a Primea Advanced Air Turbine?

Pull the retention sleeve of the Roto Quick coupling back. The turbine can now be easily removed from the Roto Quick coupling. Forcefully pulling the Primea Advanced Air Turbine may cause damage. If excessive force is required to remove the turbine, make sure that the retention sleeve of the Roto Quick coupling can be moved without any problems.

How is the Primea Advanced Air System cleaned? How is it prepared?

For detailed instructions, see the chapter "Hygiene and maintenance" in the respective instructions for Use.

Does the Primea Advanced Air Built-in need to be serviced?

The built-in electronic components do not need to be serviced separately. However, regular servicing should be carried out together with the dental unit at the legally required intervals. This will ensure the proper functioning and safety of the components. For details, see the chapter "Service" in the respective instructions for Use.

Does the Primea Advanced Air Add-on need to be serviced?

Regular servicing of the Primea Advanced Air Add-on including the accessories should be carried out at least once every three years, unless shorter intervals are prescribed by law. The regular service must only be performed by an authorised W&H service partner. For details, see the chapter "Service" in the respective instructions for Use.

Can turbines from other manufacturers be operated in a Primea Advanced Air System?

This is possible. In order to operate standard turbines (from W&H and other manufacturers), the control system of the Primea Advanced Air System can be changed over to standard turbines mode. Turbines which can be connected to the standard 6-hole connection are then operated with a constant 3 bar operating pressure.

What features do the two operating modes "Power" and "Tactile" offer?

In "Power" mode, the set speed is also constantly maintained when pressure mounts on the rotary instrument, which translates to a higher removal rate. The "Tactile" mode permits a reduction in the removal rate when pressure mounts on the rotary instrument.

Cordless Devices Cordless Devices

Proxeo Twist Cordless (9)
How long is the battery life of the Proxeo Twist Cordless?

The rechargeable battery normally lasts for around one working day (8–12 patients with a polishing duration of 4–6 minutes [actual time the foot control is ‘on’]).

Is it the same rechargeable battery as a smartphone and what is the rechargeable battery’s capacity in comparison to the lifespan of the medical device? With a smartphone, I have to charge more often the older it gets.

The Proxeo Twist Cordless has a Li-ion rechargeable battery (like many smartphones). That said, you can’t compare the Proxeo Twist Cordless with a smartphone in this context. Smartphones have apps and updates installed on them which require more processing capacity and are also updated in the background. This shortens the life of the smartphone’s rechargeable battery and means it needs to be recharged more often, even though it only loses a small amount of capacity.

Are there any recommendations for charging the Proxeo Twist Cordless’ rechargeable battery?

Yes, we recommend charging the battery from time to time (e.g. during the lunch break), in order to achieve optimal performance.

How long does the foot control’s rechargeable battery last?

The rechargeable battery lasts approx. two months based on average use (5 working days with 8–12 patients/day for 4–6 minutes).

Is it possible to thermally disinfect and sterilize the Proxeo Twist Cordless?

The Proxeo Twist Cordless can be fully disinfected by wiping down. The handpiece sleeve can be sterilized and thermally disinfected. The foot control can also be disinfected by wiping down. You will find further information on this in the Instructions for use 50928.

Which prophy angle cups can be used with the Proxeo Twist Cordless?

The Proxeo Twist prophy angle cups from W&H have some outstanding benefits. You can, however, use all conventional prophy angle cups with the Doriot system.

How can I connect the Proxeo Twist Cordless with the foot control?

You will find further information on this in the Instructions for use 50928.

Should I always call my service department first before I send devices/instruments for repair?

If you are unsure of the cause of the problem, it is better to contact your service department first and talk to a technician. Together with the technician, malfunctions can sometimes be resolved or it may be determined which items need to be sent for repair.

Can I use the W&H Proxeo Twist prophy angle cups more than once?

No, the Proxeo Twist prophy angle cups are single-use only.

Accessories Accessories

W&H Osstell ISQ module (7)
What does ISQ stand for?

The abbreviation ISQ stands for Implant Stability Quotient. It is a value between 1 and 100 and gives the surgeon an insight of the implant stability after placing the implant. With the ISQ value the surgeon can monitor the osseointegration.

How does the measurement of the ISQ work?

> To measure the ISQ of an implant, you first screw a so called SmartPeg into the placed implant. The SmartPeg, with its magnet on top, works like a small tuning fork. The magnet on the SmartPeg is ‘hit’ with magnetic pulses, from the probe, which makes the SmartPeg vibrate. Due to the stiffness in the interface between the implant surface and the bone the SmartPeg will vibrate accordingly. The more dense the bone is the higher stability and the higher ISQ value.
isq scale

Where can I buy the SmartPegs?

Please contact your local W&H partner
The sale of SmartPegs will be defined per country
The surgeon will receive 5 free SmartPegs. A voucher will be provided with the delivery of the product.

Is the ISQ scientifically proven?

The Osstell ISQ technology is proven by over 700 scientific studies. These studies have shown, that torque and ISQ correlate.

What’s the difference between torque and ISQ?

Torque is a one time, static measurement at the time of placement of the implant and cannot be repeated later on in a non-invasive way. Osstell ISQ measures the lateral stability of the implant and the measurements can be repeated in a non-invasive, dynamic way to monitor the development of osseointegration.

Is every new Implantmed compatible with the W&H Osstell ISQ module?

Yes. All control units SI-1023, SI-1015 and SI-1010 can be upgraded with the W&H Osstell ISQ module

Can the surgeon upgrade the unit by themself or does the unit need technical service?

The surgeon or dental nurse can easily attach the module to the right side of the Implantmed with the help of the provided quick manual. The module is plug-n-play via a USB connection.Implantmed with ISQ model comparison

Piezomed Instruments (5)
Is it necessary for the torque driver to engage audibly when tightening the instrument?

Yes, it must engage audibly once, as otherwise the required torque is not achieved.

Can Piezomed instruments also be used on third-party devices?

No
a. Different thread
b. Third-party device cannot find the correct resonance point – instrument fails to oscillate

How long do the instruments last and when should they be replaced?

The useful service life of the instruments is determined by the length of time they are used reprocessing and sterilization cycles have only marginal influence.
a. Instruments need to be replaced
- If there is a loss of power while working
- Where there is visible damage on the working part or the shank of the instrument.
b. Saws must be replaced if
- Teeth are broken off
- Teeth are worn
c. Diamond-coated instruments must be replaced
- As soon as the diamond coating is worn

How are the instruments prepared for cleaning?

a. Preparation in the ultrasonic bath:
- Place the instruments in the instrument tray and lower into the ultrasonic bath.
- Use cleaning agents and disinfectants suitable for hand instruments (probes, mirrors, forceps, etc.).
DO NOT USE a bur bath, as this is very aggressive.
- After cleaning in the ultrasonic bath, rinse adequately with water to remove any remnants of the cleaning agent and disinfectant from the coolant channels.
- Blow dry with compressed air after rinsing
- Replace dried instruments in the instrument tray and package for sterilization

b. Mechanical preparation in the cleaning unit and disinfector
- Use the cleaning adapter for cleaning units and disinfectors (see Instructions for Use – Accessories)
- After preparation in the cleaning unit and disinfector, check that the coolant channels are dry and, if necessary, dry again with compressed air.

Can third-party instruments be used on the Piezomed?

No
a. Different thread
b. The Piezomed instrument detection cannot detect third-party instruments

Implant stability measurement Implant stability measurement

Osstell Beacon (2)
What does ISQ stand for?

The abbreviation ISQ stands for Implant Stability Quotient. It is a value between 1 and 100 and gives the surgeon an insight of the implant stability after placing the implant. With the ISQ value the surgeon can monitor the osseointegration.

Where can I buy the SmartPegs?

Please contact your local W&H partner
The sale of SmartPegs will be defined per country
The surgeon will receive 5 free SmartPegs. A voucher will be provided with the delivery of the product.

Intraosseous Injection Intraosseous Injection

/products/endodontics/intraosseousinjection/anesto (27)
What do we need for intraosseous anaesthesia?

Intraosseous anaesthesia relies on the spongiosa being in good working order, so the anaesthetic can diffuse to the place where it is required.

Can the Anesto system be sterilized?

Yes, it not only can but must be prepared in a thermo washer disinfector and then sterilized in accordance with recognized standards.

Is palatal application also possible or sensible?

We always inject from the vestibular side. A palatal application is subject to your own discretion and the responsibility of the person performing the treatment, but we do not recommend it. For patients who are sensitive to pain, a palatal/lingual surface anaesthetic can be used in addition (gels are particularly effective here), meaning palatal/lingual penetration can be avoided. The palate is shaped like a Gothic arch, particularly in the case of patients with narrow faces. If there is not sufficient palate height, certain areas cannot be treated using Anesto. In these cases, a topical anaesthetic is required.

We know that when a tooth is extracted an injection should be used to numb various nerve structures. In the case, for example, of mandibular anaesthesia, it is expected that correct placement of the conduction anaesthesia should numb the N. mandibularis and the N. lingualis. How does that work with Anesto?

Intraosseous anaesthesia primarily affects only the target area of the N. alveolaris. To affect the nourishment area of the N. lingualis, I recommend the use of a surface anaesthetic. This is actually a separate treatment procedure, but nerve damage, as can occur with direct nerve puncture or application close to the nerve at N. mandibularis or N. lingualis, will not occur in future when taking this approach.

Anaesthetic leaks out of the handpiece

If the needle is blocked (this can also occur if the needle is twisted) and pressure is put on the lever, anaesthetic can leak from the needle injection site into the cartridge and then onto the handpiece. Corrective action is to: check the flow through the needle and change the needle if necessary.

Anaesthetic emerges from the deep tissue along the needle.

If the mucous membrane is very thin, the hole in the mucosa can become stretched and consequently there may be a reflux of anaesthetic if excessive injection pressure builds up during the infiltration phase. The situation in the spongy bone is different, but reflux is also possible if excessive injection pressure builds up. Please take your time. The absorption speed in the tissue is just a few drops per minute. Please remember that the anaesthetic is a drug and is slightly alkaline. The chemical aspect alone and in large concentrations can cause local tissue damage if the quantity is too large in too short a period. However, this is not particular to Anesto. The feel for careful application is required in all anaesthesia procedures. If the needle is not centred, it will wobble and the puncture hole will become larger. Then reflux is a certainty.

What effect does needle speed have?

If the needle is inserted too slowly, the drill holes can expand in the highly cancellous area. If there is too little rotation, the spongiosa are compressed. A high speed makes a jagged »rupture« in the spongiosa, thus creating little or no compression or clogging. In order to prevent this, it is important to precisely follow the information provided in the treatment protocol and in the handbook. Guide the stationary injection needle in accordance with the selected access techniques in the direction of the periosteum/bone until contact is made with the bone. Only use a discreet amount of penetration pressure and immediately depress the footoperated switch completely in order to achieve the speed set immediately (15,000-25,000 rpm). The needle will work through the bone on its own. No soft start, Sotherwise there is increased risk of the needle becoming clogged and the gums being torn by the rotating contact surfaces. Note: the drill hole in the cortical bone centres the needle. Our drill procedures should last for max. 3 seconds. The drill regions should be neither expanded nor jagged.

Should the injection pressure be memorized and what injection speed should be used?

The injection pressure should be built up by slowly pumping the lever over a period of several minutes. This means the anaesthetic flows out better and there are no effects to vital systems, e.g. raised pulse. If too much is injected into an area, it will inevitably flow back. Slowly inject the anaesthetic into the spongiosa by repeatedly and carefully pressing the dosage lever. At least 10 seconds per injection are recommended. Therefore a total of 2-3 minutes should be scheduled for this treatment stage. Because the absorption speed is around 1 drop/second, the first injections should be administered very slowly. Too much injection pressure and too great a concentration of injection medium carry the risk of tissue rupture and necrosis.

How does adrenaline affect blood flow in the spongiosa?

Adrenaline in a concentration of 1:100,000 has optimal vasoconstrictor characteristics. The spongiosa themselves have a good blood supply, not least through the presence of bone marrow structures.

Anaesthetic cannot be injected because the needle is blocked. What needs to be done? What can the person performing the treatment do to avoid the needle becoming clogged?

Using a non-rotating approach to perforating the bone or working at low revs can lead to the cannula becoming clogged with blood and pieces of bone. You should, therefore, avoid turning the device on too slowly and pressing down too hard in the first seconds of application. On the other hand, this problem can also be caused by a mechanical change to the needle point. When using Anesto, we have observed warping from 0 to 360°, which means a considerable restriction in the lumen at the needle point. If greater pressure is required on the dosage lever or if this lever cannot be pressed down, then the intraosseous injection needle is blocked and injection is not possible. Remove the intraosseous injection needle from the needle clamping device, replace it with a new one and repeat the process. The argument against the use of the initial drill hole is just that you have to locate it again. In the time you spend searching or the old perforation has expanded, you can create a new access point.

Can I also use standard needles? What is different about the intraosseous injection needles?

A standard cannula cannot meet the requirements for perforating bone. The needle specially developed for this system has a special cutting guide and a defined length-diameter ratio so it can withstand the rotational forces. Use in a clinical setting shows that the cannulas show deformations of up to 360°.

Do we need a new cannula for each patient?

The injection cannulas are single-use products, firstly due to the risk of infection and secondly because re-use in a second drilling process is not possible due to the needle changes that occur.

Do you have to use a new cannula for a new injection site?

Due to the risk of reflux of bacteria, blood components, etc. when the cannula is withdrawn, a new unused cartridge must always be used. The needle becomes deformed and could close up or fracture if it is used a second time. On our recommendation, the manufacturer of Anesto has included several protective caps and connectors in the kit. In cases where several types of injection must be given to the patient, this can be done quickly without any problem using a second pre-prepared system.

Broken needle

This situation is not without risk, especially if the needle has already been pushed deep through the cortical bone. All cases I know of occurred before penetrating the cortical bone and, therefore, removal was simple using tweezers. EIf the needle suddenly disappears into the mucous membranes, references are needed so you can orientate yourself in three dimensions. CPGM biteblocks which you have prepared yourself with a metal sphere as reference (defined diameter) and recorded in two planes on an x-ray enable orientation and a targeted approach to the removal procedure.

Aspiration option using the Anesto handpiece.

If you following the application guidelines, you will successfully inject into the spongiosa. It is unlikely that you will hit a larger blood vessel (e.g. N. alveolaris inferior). Please study the clinical handbook once again, as the injection sites are described here.

Risk of damaging a vessel.

If you select the right injection site, the nerve and vascular bundle is rarely affected; it is more common to affect the nutritive vessels which are narrow in diameter and therefore unproblematic. The spongiosa have a good blood supply and respond immediately to the anaesthetic. Therefore there should be no intensive secondary bleeding.

Risk of damaging a tooth root.

Before selecting the injection site, please consider the shape of the tooth, the angle of the tooth and then the tooth x-ray to avoid damaging the periodontal tissue or the tooth root. In extreme cases, you may meet great resistance. You must immediately carry out another accurate check of the injection site.

Rupture of the mucosa.

Rupture of the mucosa depends on the characteristics of the mucous membranes. Thin mucous membranes will be easier to distend or lightly rupture than thick mucosa. In addition, you should be mindful of the effects of needle rotation. The needle torque goes against the slackness of the adjacent mucous membrane area. Therefore you need to start the motor with a speed of at least 15,000 rpm up to a maximum of 25,000 rpm. Always make sure that no soft start occurs; the mucous membranes and the cortical bone must be penetrated with full torque right from the start, otherwise there is increased risk of the needle becoming clogged and the gums being torn by the rotating contact surfaces. Carefully press the intraosseous injection needle through the attached mucosa and place it upright on the bone.

If you are dealing with a small amount of anaesthetic, do you have to change the cartridge with this system?

We have already addressed the risk of infection under the question about »changing cannulas«. Setting aside the fact that anaesthetic has a worldwide price of between 18 and 50 eurocents, there is the risk that blood and bacteria can run back into the needle when you withdraw it. Studies have shown that a vacuum appears at the rubber penetration (rubber fastener) for a fraction of a second at the moment of removal, which can effectively suck some of the material from the needle into the cartridge (Source: Walter Gräf in »Aktuelle Aspekte der Lokalanästhesie« September 1984, published by Firma Hoechst, author Prof. Dr.Dr. Walter Hoffmann-Axthelm, Freiburg im Breisgau, page 147).

Can surface bacteria spread into the tissue?

A pre-operative prophylaxis is a procedure worth considering not only from a business point of view, but also because this stage leads to better pre-operative hygiene conditions, in addition to the standard pre-operative use of Chlorhexamed 0.1% or 0.2%, which alone reduces bacteria by a factor of 5,000. Creating fully sterile conditions in the oral cavity pre-operatively is wishful thinking and has nothing to do with reality. There are two known ways of managing the risk of an intraoral intervention responsibly. The first is to reduce the bacterial count through a pre-intervention prophylactic and intraoral rinsing for 2-3 minutes using a 0.1% or 0.2% Chlorhexamed rinse. The second is to use a single shot dose of antibiotics for the whole body. This recommendation is primarily aimed at oral surgical interventions. Normal preserving, prosthetic and also endodontic interventions do not require this level of risk management.Intraligamentary, infiltration and conduction anaesthesia also do not require any non-standard safeguards. If you consult the literature on this subject, the risk of infection after an intraoral injection when immune status is normal can be reckoned to be quite low. The only exception is in patients who require endocarditis prophylaxis as prescribed by an internist. (Kneist E. »Plaquekontrolle mit Chlorhexidin ZWR« – Das Deutsche Zahnärzteblatt 2011; 120 (4) page 156 – 167)

Does penetration through the cortical bone hurt and is the anaesthetic application painful?

No, penetration, i.e. drilling through the cortical bone, is not painful. If the anaesthetic is applied carefully with the pumping mechanism, this process is also completely pain-free. Giving too large a dose of anaesthetic can lead to a reflux of anaesthetic, because the tissue simply cannot absorb this.

Can you implement intraosseous anaesthesia in every area of bone or are there problem areas?

We should not forget that sensory suppression only applies to nerve structures or receptor areas – that is, just the periosteum area where there is the greatest density of receptors, along the desmodontal structures and in the areas around the nerves. The cortical bone, for example, is not innervated and so pain cannot be registered here. Therefore there is no need to suppress pain here. The injection should be made at the height of the transitional zones in the region of the middle lower root third. This is where the root structures start becoming narrower but there is still a large enough gap to the serious anatomical structures, such as the N. alveolaris inferior and the sinus maxillaris. The area between the lower premolars can be considered as a relative contraindication, because vessels can be punctured here and painful haematomas caused.

We know from the recognized anaesthesia procedures that anaesthesia can fail. What is the success rate with Anesto?

In the period from February 2010 to January 2011, we surveyed a total of 532 patients after first clarifying with them that they would be happy for us to anaesthetize them using Anesto. After the treatment, we asked them to tell us how they felt the desensitisation had worked. Patients were selected at random and participation in our study took place on a voluntary basis. There was no pre-selection based on injection areas, gender, age distribution or diagnosis. 478 patients were evaluated and we reported a success rate of 97%.

Post-operative side effects (a feeling of numbness in the tongue or lip, paresthesia, secondary bleeding)

No adverse effects have yet been reported. It is important to observe the contraindications so the number of adverse effects reported remains small. Follow the instructions for use, leave yourself time and do not experiment.

Does thermal necrosis occur with intraosseous anaesthesia? General risk of necrosis?

If the speed is too high (> 25,000 rpm) or too much pressure is used, tissue necrosis can occur as a result of heat generation. However, this can be kept to a minimum by working intermittently. Because the absorption speed is around 1 drop/second, the injection should be administered very slowly. Injection pressure that is too great and an injection medium concentration that is too high carry the risk of rupture and necrosis to the tissue.

Incomplete anaesthesia

Classic anaesthesia failure can, of course, also be observed with IOA when the inflammation and associated shifts in pH-values are substantial enough.

How do you charge for Anesto?

It is important to explain to the patient that this form of anaesthesia has a high probability of success in every respect. Neither the new German dental fee schedule (GOZ) nor BEMA have a specific position on charging. In the German dental fee scale (GOÄ), something quite different is meant by bone puncture and intraosseous infusion. However, the new GOZ offers enough room for manoeuvre thanks to paragraph 2 and sub-paragraphs, so an agreement can be made in the range of EUR 25-40. Combining the charges with »The Wand« on the invoice is another possible recommendation. Anaesthetics and cannula tips are invoiced as consumables.