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VOLUME 16 , ISSUE 1 ( January-February, 2023 ) > List of Articles

ORIGINAL RESEARCH

Determination of Microhardness of Remineralized Bleached Surface Subjected to Erosion—An In Vitro Study

Shashidhar Chandrashekhar, Dinesh Rao, Shivashankar S Mithare, Manubrolu Bharath, Zaka Mohiuddin, Jyothi S Bommanagoudar

Keywords : Bleaching, Citric acid, Hydrogen peroxide, Remin pro, Vicker's microhardness

Citation Information : Chandrashekhar S, Rao D, Mithare SS, Bharath M, Mohiuddin Z, Bommanagoudar JS. Determination of Microhardness of Remineralized Bleached Surface Subjected to Erosion—An In Vitro Study. Int J Clin Pediatr Dent 2023; 16 (1):97-100.

DOI: 10.5005/jp-journals-10005-2352

License: CC BY-NC 4.0

Published Online: 22-03-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Abstract

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.

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