Determination of Microhardness of Remineralized Bleached Surface Subjected to Erosion-An Study.

Objectives: The aim of this study is to evaluate the microhardness of remineralized bleached surface subjected to erosion.

Materials And Methods: Fifteen samples were divided into three groups and subjected to bleaching and erosion treatment. Group I-treated with 30% hydrogen peroxide then treated with 1% citric acid solution; group II-treated with 30% hydrogen peroxide and a remineralizing agent followed by 1% citric acid solution; group III-without bleaching with 1% citric acid solution.