Chandrashekhar Shashidhar, Rao Dinesh, Mithare Shivashankar S, Bharath Manubrolu, Mohiuddin Zaka, Bommanagoudar Jyothi S
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.
Int J Clin Pediatr Dent. 2023 Jan-Feb;16(1):97-100. doi: 10.5005/jp-journals-10005-2352.
The aim of this study is to evaluate the microhardness of remineralized bleached surface subjected to erosion.
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.
Group II showed the lowest % SHL after the erosive phase when compared with group I.
Erosion which usually occurs as a consequence of bleaching can be minimized by the application of remineralizing agents after bleaching.
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.
本研究旨在评估经侵蚀的再矿化漂白表面的显微硬度。
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。
与第一组相比，第二组在侵蚀阶段后的%SHL最低。
通常由漂白导致的侵蚀可通过漂白后应用再矿化剂将其降至最低。
钱德拉谢卡尔S、米塔雷SS、巴拉特M，《经侵蚀的再矿化漂白表面显微硬度的测定——一项体外研究》。《国际临床儿科牙科学杂志》2023年；16(1):97 - 100。
