Finne K, Nord P G, Persson G, Lennartsson B
Oral Surg Oral Med Oral Pathol. 1977 Apr;43(4):621-6. doi: 10.1016/0030-4220(77)90118-9.
In a 3-year review of 218 teeth with retrograde root filling with amalgam orCavit, the results obtained with the former proved significantly better than those obtained with the latter. The difference seemed to be due to a better obliteration of the canal by amalgam. The obliterating effect of amalgam probably eliminates the need for revision of incomplete othograde root filling, for example, in cases with a post in the root canal. Irrespective of type of filling materials, the results were less good in cases with marginal bone loss.
在一项对218颗采用汞合金或Cavit进行根管倒充填的牙齿的3年回顾研究中，结果表明前者明显优于后者。这种差异似乎是由于汞合金对根管的充填效果更好。汞合金的充填作用可能消除了对不完整的正行根管充填进行修复的必要性，例如，对于根管内有桩的病例。无论充填材料的类型如何，在有边缘性骨吸收的病例中结果都不太理想。
