对于活髓或近期死髓牙的残根残冠所出现的根周炎、根尖囊肿 ,痿管行根管治疗术后桩冠处理共治疗2 10颗牙 ,156个病人 (年龄 35～ 60岁 )随访 2年均固位良好疗效满意 ,除个别牙外伤性松动或脱落外其他均正常。1　材料与方法西德古莎进口光固化材料 (套装 ) ,广州光导纤维厂产Ｈ For the residual pulp of the living marrow or the recent death of the root of residual root pericarditis, apical cyst, atrophic canal root canal treatment postoperative crown treatment of a total of 210 teeth, 156 patients (age 35 ~ 60 Year-old) were followed up for 2 years with satisfactory results, with the exception of individual tooth trauma loosening or shedding other normal. 1 Materials and methods West Germany Gusha imported light-curing materials (package), Guangzhou Optical Fiber Factory H