Andrews J T, Hembree J H
J Prosthet Dent. 1978 Oct;40(4):418-21. doi: 10.1016/0022-3913(78)90124-5.
Restorations placed without the application of cavity varnish to the cavity walls and the cavosurface angle exhibited significant marginal leakage after 24 hours and 3 months. At the end of 6 months a decrease in leakage was exhibited with all alloys. With the exception of two specimens, restorations placed after coating the cavity walls and the cavo-surface angle with cavity varnish demonstrated slight or no marginal leakage at all time intervals. The results of this study indicate that the marginal leakage of a conventional filing alloy, a conventional spherical alloy, and two high-copper alloys are approximately the same. The corrosion-resistant high-copper alloys showed the same degree of marginal leakage as the conventional alloys. The results of this study agree with those of a previously reported in vitro study on amalgam leakage.
在洞壁和洞缘斜面未涂布洞漆的情况下进行修复，在24小时和3个月后出现了明显的边缘渗漏。6个月末，所有合金的渗漏均有所减少。除两个标本外，在洞壁和洞缘斜面涂布洞漆后进行的修复在所有时间间隔均显示轻微或无边缘渗漏。本研究结果表明，传统锉合金、传统球形合金和两种高铜合金的边缘渗漏大致相同。耐腐蚀高铜合金的边缘渗漏程度与传统合金相同。本研究结果与先前报道的关于汞合金渗漏的体外研究结果一致。
