根管长度测量仪与机动镍钛器械在根管治疗中的联合应用

目的：探讨根管长度测量仪与机动镍钛器械联用（直接电测法）在根管治疗过程中的应用效果。方法选择2011年1月～2013年5月于我院就诊的需要进行根管治疗的患者65例（共72颗患牙），采用“直接电测法”进行机动镍钛器械根管预备，观察患者根管治疗诊间急症（IAE）情况，并统计根管治疗成功率。结果 IAE分级统计结果：0级患牙65颗，I级患牙6颗，II级患牙1颗，III级患牙0颗。IAE发生率为1.39%，根管治疗成功率为87.5%。结论使用“直接电测法”控制机动镍钛器械根管预备的工作长度能够在简化临床步骤的同时达到较理想的治疗效果。

Application of Root Canal Length Meter Combined with Nickel-Titanium Rotary Instrument in Root Canal Therapy

Objective To explore the application value of root canal length meter combined with nickel-titanium rotary instrument （direct electrical measurement method） in root canal therapy.Methods The root canal preparation with nickel-titanium rotary instrument of 72 teeth of 65 patients who would undergo root canal therapy from January 2011 to May 2013 in our hospital was conducted by using direct electrical measurement method. Then the situations of endodontic interappointment emergencies （IEA） of the patients were recorded and the success rate of root canal therapy was calculated.ResultsThe statistical result of IEA classiifcation showed that 65 teeth were divided into grade 0, 6 teeth were divided into grade I, one tooth was divided into grade II and no tooth was divided into grade III. The IEA occurrence rate was 1.39% and the success rate of root canal therapy was 87.5%. Conclusion Based on the active length control of root canal preparation with nickel-titanium rotary instrument by using direct electrical measurement method, the clinical steps of root canal therapy can be simpliifed and the therapeutic effect of root canal therapy can be improved.