后牙残冠、残根,对患者的咀嚼功能影响很大,临床上过去多用拔除患牙后作修复体的方法加以解决。近年来,有人试用自攻螺纹钉或不平行桩核加上银汞合金或复合树脂冠等方法修复患牙,取得一定效果。笔者自1987年以来,应用预成壳冠不平行桩 EB 复合树脂核修复后牙残冠、残根,效果满意。报道如下。选择残冠的龈壁或残根的根面高出龈缘2mm以 Posterior teeth residual crown, residual root, the patient's chewing function has a great influence on the clinical use of the past to remove the teeth after the restoration method to be resolved. In recent years, some people try self-tapping screws or non-parallel postal core plus silver amalgam or composite resin crown and other methods to repair the affected teeth, and achieved some results. The author since 1987, the application of preformed shell crown parallel non-parallel piles of EB composite resin core restoration of residual crown, residual roots, the effect is satisfactory. Reported as follows. Select residual crown gingival wall or root of the root of the residual gingival margin 2mm above