Skogedal O, Helöe L A
Scand J Dent Res. 1979 Dec;87(6):459-61. doi: 10.1111/j.1600-0722.1979.tb00708.x.
The clinical quality of 203 mesio-occlusal Class II and 127 buccal Class V restorations of 246 persons aged 25 years were studied. One third of the amalgam restorations were considered to be unacceptable. Marginal overhang was the prevailing type of failure (17%), recurrent caries occurred at 12% of the restorations, unacceptable proximal contact at 10%, unacceptable marginal adaptation at 8% and isthmus fractures at 2%.
对246名25岁人群的203颗近中咬合面Ⅱ类修复体和127颗颊面Ⅴ类修复体的临床质量进行了研究。三分之一的汞合金修复体被认为是不合格的。边缘悬突是主要的失败类型(17%),12%的修复体出现继发龋,10%的邻面接触不合格,8%的边缘适应性不合格,2%的峡部出现骨折。