Wu W, Toth E E, Moffa J F, Ellison J A
J Dent Res. 1984 May;63(5):675-80. doi: 10.1177/00220345840630051401.
Dental composite restorations have been examined using a silver staining method to elucidate in vivo wear mechanisms. Emphasis was placed on examination of material immediately beneath the wearing surfaces. Several in vitro tests were also investigated for their ability to generate in vivo-like surface defects. For all the clinically worn composite restorations, a porous layer has been observed beneath those surfaces exposed to the oral environment. A laboratory test using certain substances to simulate the oral environmental effects can reproduce this porous layer. These results suggest that the in vivo wear process of dental composites is one accelerated by environmental softening of the composites.
已使用银染法对牙科复合修复体进行检查，以阐明其体内磨损机制。重点是检查磨损表面正下方的材料。还研究了几种体外试验产生类似体内表面缺陷的能力。对于所有临床磨损的复合修复体，在暴露于口腔环境的那些表面下方均观察到多孔层。使用某些物质模拟口腔环境影响的实验室试验可以重现这种多孔层。这些结果表明，牙科复合材料的体内磨损过程是一个因复合材料环境软化而加速的过程。
