Randomly, the caries of one molar was filled by FX with method of atraumatic restorative treatment (ART), the other one with amalgam.
采用自身对照和随机方法 ，其中一牙用FX做无创性修复治疗 ，另一牙用银汞合金修复。
2
Conclusion The 3mp60 might have better curative effect than silver amalgam in treatment of molar food impaction.
结论3mp60治疗磨牙食物嵌塞疗效明显优于传统银汞合金。
3
Conclusion The cast post core and crown, and glass fiber post and resin core and crown treatment is better than refined screw pile and silver amalgam or resin core nucleus.