Determination of Microhardness of Remineralized Bleached Surface Subjected to Erosion—An In Vitro 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. Five samples per group, GI, GII, and GIII were subjected to the Vickers microhardness analysis. Loss of surface hardness loss (% SHL) was analyzed followed by one-way ANOVA test, post hoc multiple comparison test, Bonferroni test to compare the various group. RESULT: Group II showed the lowest % SHL after the erosive phase when compared with group I. CONCLUSION: Erosion which usually occurs as a consequence of bleaching can be minimized by the application of remineralizing agents after bleaching. HOW TO CITE THIS ARTICLE: Chandrashekhar S, Mithare SS, Bharath M, et al. Determination of Microhardness of Remineralized Bleached Surface Subjected to Erosion—An In Vitro Study. Int J Clin Pediatr Dent 2023;16(1):97-100.