Abstract

I n the past few years orthodontists have given more attention to the esthetic aspect of the appliances they use to achieve tooth movement, especially brackets. Recently, the demand for esthetic appliances has been answered by the introduction of translucent and transparent alumina brackets . ' Ceramic brackets (single crystal and polycrystall ine) are now being marketed primari ly because of their esthetic properties. 2 This is a report on enamel damage o f the facial surface of two maxil lary incisors that were bonded with polycrystall ine sapphire ceramic brackets.

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