再矿化漂白表面经侵蚀后的显微硬度测定——一项研究

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

作者信息

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

机构信息

Department of Conservative dentistry and Endodontics, Pacific Dental College and Hospital, Pacific Academy of Higher Education and Research University, Debari, Udaipur, Rajasthan, India.

Department of Pedodontics and Preventive Dentistry, Pacific Dental College and Hospital, Udaipur, Rajasthan, India.

出版信息

Int J Clin Pediatr Dent. 2023 Jan-Feb;16(1):97-100. doi: 10.5005/jp-journals-10005-2352.

DOI:10.5005/jp-journals-10005-2352

PMID:37020775

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10067977/

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.

HOW TO CITE THIS ARTICLE

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

摘要

目的

本研究旨在评估经侵蚀的再矿化漂白表面的显微硬度。

材料与方法

将15个样本分为三组，进行漂白和侵蚀处理。第一组先用30%过氧化氢处理，再用1%柠檬酸溶液处理；第二组先用30%过氧化氢和再矿化剂处理，然后用1%柠檬酸溶液处理；第三组不进行漂白，仅用1%柠檬酸溶液处理。每组五个样本，即GI、GII和GIII，进行维氏显微硬度分析。通过单向方差分析、事后多重比较检验、邦费罗尼检验分析表面硬度损失百分比（%SHL），以比较各组。