Hormati A A, Khera S C, Kerber P E
J Prosthet Dent. 1981 Jan;45(1):52-8. doi: 10.1016/0022-3913(81)90012-3.
The marginal leakage along the proximal walls of Class II amalgam restorations was studied. The influence of the direction of the bur rotation to tooth structure in cavity preparation was the primary concern of investigation. Also, the effect of different cavity wall finishing techniques created by exit and entry action of the rotating bur and that of two different types of amalgam on the marginal leakage was studied. The degree of marginal leakage was not significantly different among any of the treatment groups.
研究了Ⅱ类银汞合金修复体近中壁的边缘微渗漏情况。在窝洞预备中，车针旋转方向对牙齿结构的影响是研究的主要关注点。此外，还研究了由旋转车针的进出动作产生的不同窝洞壁修整技术以及两种不同类型银汞合金对边缘微渗漏的影响。各治疗组之间的边缘微渗漏程度无显著差异。
