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An instrument like a mini sandblaster is used to spray away decay. During the process of air abrasion, a gentle stream of particles is aimed at the decayed portion of the tooth. These particles are silica, aluminium oxide and baking soda. They are propelled towards the tooth surface using compressed air. As soon as these particles strike the surface of the decayed tooth, the decayed particles give way and are sucked using a thin tube.

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