树脂复合材料的表面性能劣化是否受填料尺寸影响？
Is Deterioration of Surface Properties of Resin Composites Affected by Filler Size?
作者信息
Elbishari H, Silikas N, Satterthwaite J D
机构信息
Restorative Department, College of Dentistry, Ajman University, Ajman, UAE.
Division of Dentistry, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, UK.
出版信息
Int J Dent. 2020 Jan 4;2020:2875262. doi: 10.1155/2020/2875262. eCollection 2020.
PURPOSE
To investigate the effect of filler size on surface gloss and roughness of resin composites using a glossmeter and 3D noncontact surface topography, respectively, before and after tooth-brushing abrasion.
MATERIALS AND METHODS
Seven model resin composites and one commercial were tested in the study. All materials were first polished, and then the surface gloss and 2D and 3D roughness parameters were recorded. Materials are then subjected to abrasion in a tooth-brushing simulator. Roughness parameters were recorded after 10,000 cycles, and after 20,000 cycles, both roughness and gloss were recorded. One-way ANOVA and Bonferroni post hoc test ( < 0.05) were used to analyze data.
CONCLUSION
Filler size is strongly correlated to gloss and surface roughness retention.
目的
分别使用光泽度仪和三维非接触式表面形貌仪，研究填料粒度对树脂复合材料在刷牙磨损前后表面光泽度和粗糙度的影响。
材料与方法
本研究测试了七种模型树脂复合材料和一种市售产品。所有材料首先进行抛光，然后记录其表面光泽度以及二维和三维粗糙度参数。接着将材料置于刷牙模拟器中进行磨损试验。在10000次循环后记录粗糙度参数，在20000次循环后同时记录粗糙度和光泽度。采用单因素方差分析和Bonferroni事后检验（P<0.05）对数据进行分析。
结论
填料粒度与光泽度及表面粗糙度保持率密切相关。
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