Troubleshooting

How Should I Maintain My Hand piece?

Hand piece maintenance; this is a guide only and should not replace the manufactures specifications.

Clean exterior of hand piece

  • Be certain to wear gloves
  • Clean any visible debris with a soft bristle brush and warm running water, rinse and dry thoroughly.
  • Clean inside and exterior of the hand piece, spray with Bien Air Spraynet disinfectant.
  • DO NOT use phosphate based detergents.
  • DO NOT immerse a hand piece in a cleaning solution.
  • DO NOT soak or place hand piece in an ultrasonic cleaner

 

Lubricate Hand piece

  • Spray Bien Air Lubrifluid Lubrication fluid into the intake tube located at the bottom of the hand piece, followed by spraying into the head assembly.
  • Install a bur into the chuck of the hand piece.
  • Operate the hand piece for approximately 20 seconds to purge the hand piece with oil and expel.
  • WARNING: Operating the hand piece without a bur in the chuck may cause premature failure of the chuck.

 

Sterilize

  • Individually bag each hand piece for sterilization.
  • Place hand piece in autoclave and run cycle.
  • NEVER operate a hand piece that is hot to the touch. Allow the hand piece to cool to room temperature before operating.
  • NEVER exceed 135c in the sterilization cycle.
  • Be sure to use clean chemicals when using a chemical sterilizer.
  • NEVER leave a hand piece in the autoclave overnight.
  • Place bag in the autoclave tray with the paper side of the bag facing up.
  • Once the cycle has finished and the hand pieces have cooled down, remove from the autoclave.
  • Your hand piece is now ready for use or storage. 

 

Things to Remember

  • Always fully insert a bur into the chuck and secure properly.
  • Do not operate a hot or warm hand piece directly from the autoclave; doing so will greatly reduce turbine longevity.
  • Never place a hot hand piece under cold water, allow to cool down period (30 minutes approximately)
  • Always lubricate a hand piece before autoclaving.
  • If you suspect a hand piece has been dropped do not use the hand piece because you might destroy the turbine.
  • Always read and follow the manufacturer’s instructions for the hand piece before use.
  • Specifications vary however typically air pressure should not exceed 32 PSI for high-speed hand pieces and 45 PSI for low-speed air motor.
  • Do not run a hand piece without a bur installed or damage to the turbine mechanism may occur.
  • Do not operate a hand piece without a bur securely in place.
  • Do not depress the push button on a push button hand piece during operation, as excessive heat at the cap can be generated.

 

Glossary of Hand piece Terms

           A-B       

Air Motor -A slow speed hand piece without integral reduction gears or attachments

Autoclave- A steam sterilizer that kills living organisms. Temperature is raised to (135ºC) while the pressure is raised to 30 PSI.

Bearing - A high precision part used to support rotating parts with very low friction.

Bur- A rotary dental instrument held and revolved in a hand piece. Used to remove carious material within decayed teeth to reduce decayed or fractured hard tissues, to form the design of the cavity preparation, and to finish and polish teeth and restorations. Can be made of high-speed steel, carbide or diamond coated material.

C

Chip Air - Air supplied to the cutting surface to cool the tooth and flush chips and residual material resulting from the removal of a decayed tooth surface.

Chuck- A mechanism used to change a bur by pressing a button or by raising a latch lever.

Contra Angle - An attachment used with a straight or slow speed motor that changes the desired angle to better reach areas in the oral cavity, which are difficult to access.

Coupling- There are four types of standard hand piece couplings. They include the 2-hole (also called a Borden fitting); 3-hole and 4-hole. The 4-hole (also called a Midwest Connector) is the most popular connector. In a 4-hole connector, the holes are (1) drive air, (2) chip air, (3) water and (4) ex

D - E

Drive Air - The air supply used to power an air-driven dental instrument.

"E" Type Motor- Motor which has a standardized nose attachment for fitting of straight or contra angles hand pieces.

Exhaust- The air discharged from a dental hand piece.

Fiber Optic Hand piece- A hand piece which incorporates a fiber optic light source.

H

Hand piece- A handheld device, which engages rotary instruments for cutting, cleaning or polishing the teeth. A hand piece can be air driven or electric.

High-Speed Hand piece- A hand piece that operates at a speed greater than 200,000 RPM

L

Low-Speed Hand piece- In general, any hand piece used at speeds less than 200,000 RPM. Sometime referred to as Slow-Speed Hand piece.

Lubricant/Cleaner - A liquid applied to moving parts of a hand piece or attachment in order to reduce friction, heat, or wear, or applied to surfaces in close contact to prevent them adhering to one another. Also includes a solvent for cleaning.

P - R

Prophy hand piece- A prophy angle accepts screw-in brushes on cups or snap-on cups.

Quick-Disconnect- A hand piece attachment or coupling designed to allow easy separation of the hand piece from the supply tubing.

RPM- Revolutions per minute (RPM) is often used to describe the types of hand pieces. Air motor is 20,000 RPM or less is used; Electric motor 40,000 RPM or less; and for high speed 400,000 RPM and greater.

S - T

Straight Hand piece- Same as slow speed hand piece.

Turbine- Located in the head of the high-speed hand piece, it rotates by the use of compressed air. A high-speed hand piece typically consists of five major parts: spindle (or centre shaft); chuck; impeller; bearings and "O" rings.
 

 

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