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Air-polishing
 

                                                 Air-polishing

  
Air polishing insert in use
Air polishing insert in use


Air polishing is an alternative, non-contact, method of polishing teeth using a polishing cup and paste. It requires a special ultrasonic unit (e.g. CaviJet ™: Dentsply) that allows use of this insert in the handpiece.

Air polishing uses medical-grade sodium bicarbonate and water in a jet of compressed air to "sandblast" the surface of the enamel smooth. Examples include the Prophy-Jet® and Cavitron Jet® (Dentsply Ltd.). The nozzle is held 3 to 5 mm from the tooth, centred on the middle third of the tooth. Use at 60° to the long axis of the root. Do not direct into the gingival sulcus.

  
Air polisher in use
Air polisher in use

Advantages

  • There is no physical contact with the tooth, therefore thermal injury is of no concern.
  • It is ideally suited for teeth separated by wide diastemata and considerable in shape and size.
  • Particularly good for cats where teeth are so small that standard cups can create gingival damage.
  • They are very efficient at removing stains from teeth.

 

Disadvantages

  • Cannot point spray directly into the sulcus therefore subgingival polishing is not recommended. This means that a polishing cup is still required subgingivally.
  • Air polishing generates aerosol of micro-organisms and powder - therefore personal protection (mask and eyewear) is very important.
  
Mask and eye protection
Mask and eye protection