In order to further understand the wear mechanisms of cemented carbide cutter head of conical pick, six wornout cutter h......

目的 观察复合树脂充填后牙磨耗凹坑的临床效果.方法 选择后牙(牙合)面有坑状磨耗且具有足够充填空间患者20例,共68颗牙,均无牙髓......