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Study on the wear resistance of the surface sealing layer with flowable composite resin on the enamel bonded with bracket
Author(s): 
Pages: 77-80
Year: Issue:  2
Journal: Chinese Journal of Orthodontics

Keyword:  Surface sealingFlowable composite resinWearFixed orthodontics;
Abstract: 目的 观察流动复合树脂表面封闭层的耐磨性及其在提高粘接托槽牙面抗磨耗性能方面的作用.方法 40颗离体前磨牙随机分为未脱矿组、自酸蚀组、直接脱矿组、表面封闭后脱矿组,每组10颗.恒温水浴及冷热循环后,直接脱矿组、表面封闭后脱矿组置0.1M的乳酸胶脱矿48h,将4组离体前磨牙制成试件,牙刷磨耗31000次,扫描电镜观察颊面牙釉质结构及封闭层改变情况.结果 磨耗后,未脱矿组牙面未见刷痕;自酸蚀组、直接脱...
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