MICROSCOPIC OBSERVATIONS OF THE WEAR OF A TOOTH RESTORATIVE COMPOSITE INVIVO
MICROSCOPIC OBSERVATIONS OF THE WEAR OF A TOOTH RESTORATIVE COMPOSITE INVIVO
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DOI：
10.1002/jbm.820170309
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发表时间：
1983-01-01
期刊：
影响因子：
--
通讯作者：
TURNER, DT
中科院分区：
文献类型：
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作者：
ABELL, AK;LEINFELDER, KF;TURNER, DT
复合修复材料在[人类]口腔内的磨损，随后通过扫描电子显微镜检查印模。填充颗粒从聚合物基体中突出，最终在表面留下孔洞。通过跟踪一个大的突出颗粒表面上基体的衰退，获得了磨损率的测量。对于已经进行了7年的修复，在接下来的几个月里，平均磨损率估计为0.1%。0.1 .mu.m /天。相比之下，在整个7年的时间里，总磨损为2mm，平均磨损率为0.8 μ m/天。
The wear of a composite restorative material in the [human] oral cavity was followed by examining impressions by scanning electron microscopy. Filler particles protrude from the polymeric matrix and, eventually, are lost leaving holes in the surface. A measure of the rate of wear was obtained by following the recession of the matrix on the faces of a large prominent particle. For a restoration that had been in place for 7 yr, the average rate of wear over a further period of several months was estimated to be .apprx. 0.1 .mu.m/day. For comparison, the gross wear of 2 mm over the entire 7-yr period gives a greater average rate of wear of 0.8 .mu.m/day.