Kawai K, Tsuchitani Y
Department of Operative Dentistry, Osaka University, Japan.
J Osaka Univ Dent Sch. 1994 Dec;34:9-18.
The purpose of this paper was to compare generalized wear resistance of eleven proprietary posterior dental composites and one amalgam using a recently developed in vitro wear testing apparatus. Upon completion of the in vitro wear testing process the wear area of occlusal surface was replicated and the depth of enamel exposed at the cavity margin was measured by a traveling microscope. Based upon the results of this study it was demonstrated that there were significant differences amongst materials included in this study. Also this wear test not only reproduced the microstructure of worn oclusal surface, but also predicted wear rates which correlated somewhat well with clinical performances.
本文的目的是使用一种最新开发的体外磨损测试设备，比较11种专利后牙复合材料和1种汞合金的一般耐磨性。在体外磨损测试过程完成后，复制咬合面的磨损区域，并通过移动显微镜测量洞缘处暴露的牙釉质深度。基于本研究的结果表明，本研究中所包含的材料之间存在显著差异。此外，这种磨损测试不仅再现了磨损咬合面的微观结构，还预测了磨损率，且磨损率与临床性能有一定程度的相关性。
