How to Clean a Dental Drill Without Damaging It

Cleaning a dental drill isn’t hard — until you do it wrong

Ask any tech who’s had to replace a $700 handpiece because someone skipped a drying step or used the wrong cleaner. Happens more often than you think.

Here’s the proper cleaning method that actually extends your drill’s lifespan — no shortcuts, no stress, and no unnecessary repairs.

Why Proper Cleaning Actually Matters

It’s not just about cross-contamination (though that’s a huge issue) — it’s about protecting your turbine, bearings, and internal gear.

Improper cleaning leads to:

• Rusted internal components
• Loss of speed/torque
• Buildup of bioburden
• Warranty voids

A 3-minute proper clean saves hundreds in replacements later.

Tools You’ll Need

• Soft nylon brush
• Mild detergent or enzymatic cleaner
• Handpiece lubricant spray
• Lint-free cloth
• Clean, dry air source (for flushing)

Step-by-Step: How to Clean a Dental Drill Safely

1. Disconnect + Remove Bur – Always remove the bur before cleaning. Never submerge a drill with the bur still attached.
2. External Wipe Down – Use a soft cloth dampened with enzymatic solution or mild detergent. Avoid harsh chemicals that can degrade the housing.
3. Internal Flushing (if manual) – Flush air and water lines to remove debris. Some clinics use automated systems — others use manual syringe flushing.
4. Lubricate the Turbine – Spray oil into the drive port until it exits cleanly from the head. Rotate the handpiece manually to distribute it evenly.
5. Bag for Sterilisation – Seal the drill in a sterilisation pouch and autoclave immediately after lubrication.

Pro tip: Always dry thoroughly before storing. Moisture = turbine death.

Common Mistakes That Wreck Handpieces

• Using alcohol wipes on the turbine head
• Skipping lubrication
• Not drying after ultrasonic cleaning
• Tossing drills in drawers while still warm/damp
• Leaving burs inserted during autoclaving

How Often Should You Clean and Disinfect?

After every single use. No exceptions.

Even if the patient didn’t “seem dirty.” Bioburden builds invisibly. Clean, lubricate, and sterilise after every patient.

Recommended Supplies + Storage Tips

• Use only approved dental lubricants (not WD-40 or generic sprays)
• Store in a dry, dust-free drawer
• Rotate handpieces to ensure even usage/wear
• Label pouches with sterilisation date