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目的以拔除的经根管治疗过的患牙为研究对象,分析保留失败的原因。方法收集分析拔除的经根管治疗过、无法保留的65例患牙资料,分类研究其原因。结果经根管治疗过的患牙因修复原因失败的占60.0%,其中主要是未做冠修复造成冠根折失败。结论根管治疗自身的成功率较高,但根管治疗后及时的调牙合及冠修复对防止治疗牙的冠根折十分必要,重视牙周治疗和正确、合理的修复有利于延长根管治疗牙的保存寿命。
Objective To study the causes of failure of preserved teeth treated with root canal extraction. Methods Totally 65 cases of dental materials that had been treated after root canal removal were collected and analyzed. The causes were analyzed. Results The root canal treatment of the affected teeth failed to repair the cause accounted for 60.0%, of which the main failure to do crown repair caused crown root fracture. Conclusions Root canal therapy has a high success rate. However, timely adjustment of root canal and crown after root canal treatment is very necessary to prevent crown root fracture of teeth. Emphasis on periodontal treatment and correct and reasonable repair are helpful to extend root canal Treatment of teeth to save the life.