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 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. The enamel microabrasion procedures were performed after enamel macroabrasion of the affected enamel surfaces using a fine grained diamond bur 3195 ff kg sorensen under a water and air spray to keep the surfaces cool figure 2. 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
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