汞合金的Sn4(OH)6Cl2和SnO腐蚀产物。

Sn4(OH)6Cl2 and SnO corrosion products of amalgams.

作者信息

Marshall S J, Marshall G W

出版信息

J Dent Res. 1980 May;59(5):820-3. doi: 10.1177/00220345800590051201.

DOI:10.1177/00220345800590051201

Abstract

Although the corrosion characteristics of dental amalgam have been of considerable interest to dental researchers, it has been difficult to identify the products which form in vivo. This report demonstrates that Sn4(OH)6Cl2 and SnO are formed in vivo and in vitro. The Sn-Cl product is the predominant phase formed by corrosion-induced changes of the Sn8Hg phase of amalgam. It is present in conventional and, in smaller amounts, Cu-rich amalgam restorations.

摘要

尽管牙科汞合金的腐蚀特性一直是牙科研究人员相当感兴趣的课题，但要确定在体内形成的产物却很困难。本报告表明，Sn4(OH)6Cl2和SnO在体内和体外均有形成。Sn-Cl产物是汞合金中Sn8Hg相腐蚀诱导变化形成的主要相。它存在于传统汞合金修复体中，在富铜汞合金修复体中含量较少。