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VOLUME 4 , ISSUE 1 ( January-June, 2019 ) > List of Articles

Original Article

Evaluation of the Effect of Remineralizing Agent on Bleached Enamel Surfaces Subjected to Erosion: An In vitro Study

Manju Krishna EM, Robin Theruvil, Jain Mathew, Saira George, Midhun Paul, John Jacob, Allu Baby

Keywords : Erosion, Remineralizing agent, Surface hardness loss, Tooth bleaching

Citation Information : Krishna EM M, Theruvil R, Mathew J, George S, Paul M, Jacob J, Baby A. Evaluation of the Effect of Remineralizing Agent on Bleached Enamel Surfaces Subjected to Erosion: An In vitro Study. Cons Dent Endod J 2019; 4 (1):1-5.

DOI: 10.5005/jp-journals-10048-0045

License: CC BY-NC 4.0

Published Online: 00-06-2019

Copyright Statement:  Copyright © 2019; Jaypee Brothers Medical Publishers (P) Ltd.


Tooth bleaching helps to improve the appearance of discolored teeth. But the use of acidic food can lead to increased erosion after bleaching. Remineralizing treatment with a remineralizing agent is capable of reestablishing the lost enamel surface hardness after bleaching. In this study, changes in microhardness were analyzed upon the application of a remineralizing agent after subjecting the enamel surfaces to bleaching and erosive challenge. Aim: The aim of this study is to evaluate the effect of a remineralizing agent on bleached enamel surfaces subjected to erosive challenge. Materials used: (1) 35% carbamide peroxide (Opalescence PF, Ultradent)—a bleaching agent; (2) Remin Pro—a remineralizing agent; (3) 1% citric acid solution—an erosive agent. Methodology: Samples were divided into three groups and subjected to bleaching and erosion treatment. Group I—treated with 35% carbamide peroxide then treated with 1% citric acid solution; group II —treated with 35% carbamide peroxide and a remineralizing agent followed by 1% citric acid solution; group III—without bleaching with 1% citric acid solution. The sample size calculated using the statistical package G*power (3.1.5) with a level of significance of 0.05. The sample size obtained is n = 15, 5 samples per group. G1, G2, and G3 were subjected to the Vickers microhardness analysis. Loss of surface hardness loss (% SHL) was analyzed. Result: The lowest % SHL is in group II—24.718 when compared with group I—35.048. Conclusion: Post-bleaching application of a remineralizing agent helps to decrease the effect of erosion occurring as a consequence of bleaching.

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