Kozono Y, Moore B K, Phillips R W, Swartz M L
J Biomed Mater Res. 1982 Nov;16(6):767-74. doi: 10.1002/jbm.820160603.
This experiment was designed to investigate the in vitro corrosion of several modern dental amalgams in saline solution over a six-month period by measuring changes in the soluble corrosion products. Based on the change of the electrical conductivity of the solution, the dissolution rate seemed to decrease gradually for the first three to four months. Then a rapid increase was observed, indicating a reactivated corrosion process. Larger dissolutions of copper and mercury were observed, especially for the high copper alloys, in these later stages. Zinc and indium, if present, were preferentially released at the earlier stages. Silver and tin could not be detected. Evidence exists that the corrosion of tin results in insoluble deposits of corrosion products.
本实验旨在通过测量可溶性腐蚀产物的变化，研究几种现代牙科汞合金在盐溶液中六个月内的体外腐蚀情况。根据溶液电导率的变化，在最初的三到四个月里，溶解速率似乎逐渐降低。随后观察到快速增加，表明腐蚀过程重新激活。在这些后期阶段，观察到铜和汞的溶解量更大，特别是对于高铜合金。如果存在锌和铟，它们在早期阶段会优先释放。未检测到银和锡。有证据表明，锡的腐蚀会导致腐蚀产物形成不溶性沉积物。
