Schimelmitz H, Bapna M S, Punwani I, Ashrafi S H, Anderson A W
J Prosthet Dent. 1986 Feb;55(2):189-94. doi: 10.1016/0022-3913(86)90340-9.
This study examined the contact surface area in the coupling of a class II amalgam restoration with another class II amalgam restoration or with a stainless steel or nickel-chrome crown in 1% NaCl solution. The characterization of interfaces was carried out by using SEM and EDX microanalysis. The results indicate that the coupling of an amalgam-stainless steel crown and an amalgam-inconel crown in NaCl solution forms a deposit on the crown surfaces. This deposit contains all the constituents of corrodible phases of amalgam, including Zn. If amalgam restorations in adjoining teeth are contemplated, non-Zn-containing amalgam alloys of the same composition should be considered.
本研究检测了在1%氯化钠溶液中，二类汞合金修复体与另一二类汞合金修复体、不锈钢或镍铬冠连接时的接触表面积。通过扫描电子显微镜（SEM）和能谱仪（EDX）微分析对界面进行表征。结果表明，在氯化钠溶液中，汞合金-不锈钢冠和汞合金-镍铬合金冠的连接在冠表面形成了沉积物。该沉积物包含汞合金可腐蚀相的所有成分，包括锌。如果考虑相邻牙齿中的汞合金修复体，则应考虑使用相同成分的无锌汞合金。
