Bien-Air Contra-Angle Maintenance: Official Step-by-Step Guide
Director of Marketing & Customer Experience, Bien-Air USA
Proper contra-angle maintenance takes just a few minutes per day and keeps your handpieces performing at peak precision. Follow the official instructions, below.
Need the official Instructions for Use?
This guide is designed to make daily maintenance easier to understand. For model-specific cleaning, lubrication, sterilization, warnings, and technical instructions, always reference the official IFU for your Bien-Air product.
Quick Maintenance Videos
Need a fast refresher? Use these quick links to jump to the maintenance video that matches your handpiece type.
Electric Contra-Angles
Watch Electric Contra-Angle Maintenance – Video
Clean, lubricate, sterilize, and protect your contra-angle workflow.
Air Handpieces
Watch Air Handpiece Haintenance – Video
Covers all the important steps for cleaning and lubricating your air-driven handpieces.
Surgical Attachments
Watch Surgical Attachment Maintenance – Video
Covers the additional care steps for implant and surgical handpieces.
In This Guide
Before You Begin: View the Official IFU
Quick Maintenance Videos
Why Does Bien-Air Handpiece Maintenance Matter?
How Soon After Use Should You Start Maintenance?
Step-by-Step Daily Maintenance Routine
Does This Routine Meet Infection Control Standards?
Frequently Asked Questions About Bien-Air Handpiece Maintenance
Why Does Bien-Air Handpiece Maintenance Matter?
Bien-Air handpieces are Swiss-engineered for high torque, low noise, and durability. Skipping or rushing maintenance can lead to bearing wear, reduced performance, cross-contamination risks, and even voided warranty. The good news: the process is simple, consistent, and identical across most models when you use only genuine Bien-Air products, including Spraynet, Aquacare, and Lubrifluid.

How Soon After Use Should You Start Maintenance?
Clean, disinfect, and lubricate every handpiece within a maximum of 30 minutes after each treatment. This prevents blood, saliva, and debris from hardening inside the instrument.
Step-by-Step Daily Maintenance Routine
Remove the bur and disconnect the handpiece
Immediately remove the rotary instrument from the chuck and disconnect from the motor or coupling.

External and internal cleaning
Use Bien-Air Spraynet cleaner.
For internal cleaning, attach the back of the handpiece on the nozzle and spray for the recommended time, typically 1–2 seconds.
Gently clean any remaining debris with a non-linting cloth — never use a wire brush.

Lubrication
Use Bien-Air Lubrifluid.
Attach the back of the handpiece on the nozzle and spray for the recommended time, typically 1–2 seconds.
Lubricate before every sterilization and at least twice daily in high-volume practices.

Drying & Sterilization
Wipe the exterior with a lint-free cloth and blow out excess moisture with compressed air. Never use hot air or ovens — allow to air-dry completely.
Package in approved sterilization pouches and autoclave at 134–135°C / 273–275°F following your sterilizer’s instructions. Cool completely before reuse or storage.
Pro Tip: Automate with Lubricare 2
The Bien-Air Lubricare 2 maintenance system cleans and lubricates up to four handpieces at once in under a minute per handpiece. It delivers perfectly consistent results with zero manual guesswork — ideal for busy practices.

Does This Routine Meet Infection Control Standards?
Yes. Bien-Air handpieces include built-in sterilizable anti-retraction valves, and the full process above complies with CDC guidelines for heat sterilization between patients.
Frequently Asked Questions About Bien-Air Handpiece Maintenance
Q: Is maintenance for air-driven handpieces the same?
A: Yes, the process is very similar. However, we recommend that you lubricate the chuck with Lubrimed after every use. If you’d like more information on maintaining air handpieces, please watch this short video.
Q: Can I use any cleaning or lubrication spray?
A: Yes. However, we highly recommend using a separate cleaning and lubricating spray (instead of an all-in-one solution) because these processes (cleaning and lubricating) are very different.
Q: How often should I clean and lubricate my contra-angle handpieces?
A: We recommend you do clean and lubricate after every use, before sterilization.
Q: Are Bien-Air implantology and surgery handpieces maintained differently?
A: The core steps are similar, but oral surgery and implantology handpieces require Aquacare in addition to Spraynet and Lubrifluid. To learn more about maintaining implant and surgical handpieces, please watch this short video.
Q: Where can I download the exact instructions (IFU), for my model?
A: Visit the official Bien-Air USA IFU Library here: bienairusa.com/ifu. Select your product category or model to view the correct Instructions for Use before cleaning, lubricating, sterilizing, or servicing your handpiece.
Looking for the official IFU?
Use the Bien-Air USA IFU Library to find model-specific instructions for cleaning, lubrication, sterilization, and care.
Sources: Bien-Air Dental SA official maintenance procedures and product Instructions for Use.
