Johnson G H, Bales D J, Powell L V
Department of Restorative Dentistry, University of Washington, School of Dentistry, Seattle 98195.
Oper Dent. 1992 Sep-Oct;17(5):196-202.
The purpose of this study was to clinically evaluate two formulations of a dispersed-phase, high-copper dental amalgam alloy (Indisperse), which contained admixed indium. One alloy tested contained 5% indium, and the second alloy contained 10% indium. A similar alloy without indium, Dispersalloy, was also placed for comparison. Over the course of the five-year study, there were no differences clinically or statistically regarding texture and luster. The margins of the restorations containing indium incurred slightly less fracture than the non-indium-containing restorations; however, these differences were not clinically significant. It can be concluded that the admixture of 5-10% indium as well as the increased ratio of eutectic spheres to lathe-cut particles found in the indium alloys enhance the clinical performance of amalgam restorations.
本研究的目的是对一种含混合铟的分散相、高铜牙科汞合金（Indisperse）的两种配方进行临床评估。测试的一种合金含5%铟，第二种合金含10%铟。还放置了一种不含铟的类似合金Dispersalloy作为对照。在为期五年的研究过程中，在质地和光泽方面，临床和统计学上均无差异。含铟修复体的边缘比不含铟的修复体发生骨折的情况略少；然而，这些差异在临床上并不显著。可以得出结论，铟合金中5%-10%铟的混合以及共晶球与车削颗粒比例的增加提高了汞合金修复体的临床性能。
