Abraded teeth

Abrasion definition

It is the loss of tooth structure by mechanical forces from a foreign element. If this force begins at the cement enamel junction, then progression of tooth loss can be rapid since the enamel is very thin in the tooth region.

Air abrasion definition

It is a drill-less technique that is being used to remove tooth decay and for other applications. During air abrasion, a fine stream of particles is aimed at the decayed portion of the tooth. These particles are made of silica, aluminium oxide or a baking soda mixture and are propelled toward the tooth surface by compressed air or a gas that runs through the dental handpiece. Small particles of decay on the tooth surface are removed as the stream of particles strikes them. The particles of decay are then "suctioned" away.

Is Air abrasion safe?

Yes, Air abrasion is totally safe! The only precautions needed before air abrasion are: Protective eye wear to prevent eye irritation from the spray and the use of a rubber sheet that fits around teeth to protect areas of the mouth that aren't being treated. The suctioning of particles also prevents them from being breathed into the lungs.

What are the advantages of air abrasion?

• Air abrasion reduces the need for anaesthetic, particularly if the cavity is shallow
• Air abrasion leaves much more of the healthy tooth tissue behind.
• It generates no heat, sound, pressure or vibration.
• It leaves the working area relatively dry, which is an advantage during the placement of composite fillings.
• It also reduces the risk of microfracturing and chipping of the tooth, which some experts believe can lead to premature restorative failures.
• This method allows the dentist to treat multiple sites in the mouth during a single visit.
• Finally, the procedure is totally simple and quick.

The disadvantages

The only disadvantage of air abrasion is that this procedure is not necessarily totally painless. The air can cause sensitivity and so can the abrasives used.