Enamel microabrasion involves the use of acidic and abrasive agents such as with 37 phosphoric acid and pumice or 6 hydrochloric acid and silica applied to the altered enamel surface with mechanical pressure from a rubber cup coupled to a rotatory mandrel of a low rotation micromotor. Enamel microabrasion is a conservative method for removing enamel to improve discolorations limited to the outer enamel layer sundfeld et al 36 2007 noted in an in vitro study that the enamel microabrasion technique results in a loss of enamel of around 25 to 200 m depending on the number of applications and acids concentration. Enamel microabrasion what is microabrasion tooth discolorations on the permanent teeth can be caused by a number of conditions for example excessive ingestion or swallowing of otherwise beneficial fluoride trauma to a baby tooth high fevers or prolonged chronic illnesses during childhood. Enamel microabrasion is a nonrestorative conservative treatment that works both chemically and mechanically to remove up to 02 mm of affected enamel per application for some patients the depth of the staining may be beyond the scope of microabrasion alone
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