Comparative evaluation of antioxidants on the microshear bond strength of bleached enamel: An in vitro study.

Journal of conservative dentistry and endodontics Pub Date : 2025-04-01 Epub Date: 2025-04-03 DOI:10.4103/JCDE.JCDE_497_24

Shreya Dharni, Nidhi Sharma, Dakshita Joy Sinha, Sarita Singh, Manjiri Honap Nagesh, Neha Verma

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Abstract

Background: The aim was to compare and assess the effects of tocopherol, glutathione (GSH), and sodium ascorbate (SA) on bleached enamel's resin tooth-colored microshear bonding capacity.

Materials and methods: After flattening, out 120 sound human premolars and dividing the teeth into four groups: Group A: No bleaching or antioxidants (the control group), Group B received SA, Group C received GSH, and Group D received tocopherol.

Results: The resin tooth-colored was bonded in just one step, and the microshear degree of adhesion of tooth-colored to bleached enamel was evaluated. The data were analyzed using a one-way ANOVA followed by the post hoc Tukey test.

Conclusion: The microshear degree of adhesion (SBS) of tooth-colored resin diminishes after bleaching. Nonetheless, antioxidants such as SA and GSH can effectively restore the reduced degree of adhesion capacity.

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抗氧化剂对漂白牙釉质微剪切结合强度的影响：体外研究。

背景：目的是比较和评价生育酚、谷胱甘肽（GSH）和抗坏血酸钠（SA）对漂白牙釉质树脂牙色微剪切结合能力的影响。材料与方法：将120颗健康的人前磨牙压平后，分为4组：A组：无漂白及抗氧化剂（对照组），B组：SA组，C组：GSH组，D组：生育酚组。结果：牙色树脂仅一步粘结完成，并评价了牙色树脂与漂白牙釉质的微剪切粘附程度。采用单因素方差分析和事后Tukey检验对数据进行分析。结论：牙色树脂的微剪切黏附度（SBS）在漂白后降低。然而，抗氧化剂如SA和GSH可以有效地恢复粘附能力的下降程度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of conservative dentistry and endodontics

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