根管治疗术对冠根折裂修复的临床研究

目的观察采取根管治疗术后修复冠根折裂牙的方法和疗效。方法随机选取海珠区口腔医院患者130例共142个冠根折裂后经根管治疗术的患牙资料进行分析,其中72颗完全纵折牙采取结扎固定根管治疗后进行全冠修复;70颗冠根斜折于龈下的牙齿进行根管治疗后行牙冠延长术以暴露根面,5周后做核桩冠修复。追踪复查2年后患者的治疗效果和部分患牙拔除原因。结果斜折型和完全纵折型保存率均大于85%。而本组经根管治疗过的患牙拔除其原因是根管治疗本身的仅占9.8%,与其它原因相比,差异有统计学意义(p<0.05)。结论正确合理的修复有利于延长根管治疗牙的保存寿命,采用根管治疗术对完全折裂牙修复后,对恢复正常的咀嚼功能,修复折裂牙有积极地临床应用价值。

THE CLINICAL STUDY OF ROOT CANAL THERAPY IN REPAIRING FRACTURE TEETH

Objective To observe the method and effect of repairing fractured tooth after took root canal therapy. Methods 142 fractured teeth of 130 patients were treated by root canal therapy,including 72 complete vertically fractured teeth which were ligation fixed and took root canal therapy and crowned,70 in the subgingival crown root under the gambrel underwent root canal therapy of tooth crown lengthening surgery in the most exposed root surface,5 weeks later core crown,track review after 2 years treatment and the reason of removing teeth. Results The saving rate was over 85%.The rate of removed teeth caused by root canal treatment is 9.8%,compared with other reasons,the difference was statistically significant(p<0.05). Conclusion Correct and reasonable repair help extend the life of the root canal treated teeth,the use of root canal therapy is meaningful for the restoration of chewing function and repairing fractured teeth.