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Effects of light-curing modes on the polymerization shrinkage and surface hardness of composite resins
Author(s): 
Pages: 770-773
Year: Issue:  5
Journal: Journal of Peking University(Health Sciences)

Keyword:  复合树脂聚合收缩硬度;
Abstract: 目的:研究光固化模式对复合树脂聚合收缩率和表面硬度的影响,探讨这些因素的影响对临床工作的指导意义.方法:研究使用填料含量为76%(质量分数)的混合填料复合树脂,选择3种光固化模式固化树脂,分别为高光强模式、低光强模式和软启动模式,每种光固化模式分别固化树脂10 s和20s.制备树脂聚合收缩样本和表面硬度样本,使用Acuvol聚合收缩仪测定树脂的聚合收缩率(n=7),显微硬度仪测定树脂的表面硬度(n...
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