残根残冠是牙体严重缺损的病变,对经过根管治疗的残根残冠进行保存修复治疗是十分有意义的,主要表现在简化治疗过程、减少修复损伤、提高修复效果、保存牙槽骨等方面。本文从保存修复的目的出发,针对不同的修复方法,探讨了残根残冠保存治疗的适应证,希望保存和微创的原则能在口腔修复临床中得到充分的重视和应用。 Residue residual crown is a serious defect of the lesion, after root canal treatment of residual root residual crown preservation and repair treatment is very meaningful, mainly in the process of simplifying the treatment to reduce repair damage and improve the repair effect, save the alveolus Bone and so on. In this paper, starting from the purpose of preserving and repairing, according to different methods of repair, this paper discusses the indications of residual root and crown preservation and hope the principle of preservation and minimally invasive can get enough attention and application in the clinical practice.