【摘要】 目的评价不同预备方法预备根管对约诊间痛(EIAE)发生率的影响。方法临床选取前磨牙103颗,随机分成两组,分别采用冠-根向法(大锥度K3机用镍钛器械,实验组)和常规法(02锥度手用不锈钢器械,对照组)预备,比较两组根管预备后,患牙约诊间痛(EIAE)发生的情况。结果实验组根管预备后EIAE发生率为7.55%,对照组为22.00%,两组差异有统计学意义(P<0.05)。结论冠-根向预备法比常规法能有效降低EIAE的发生。更多还原

【Abstract】 Objective To evaluate the effects of different methods on the endodontic interappoint emergencies happened to the patients after premolar root canal preparation.Methods 103 premolars were selected from the patients and divided into two groups which were treated with crown-down technique and routine preparation technique respectively.The incidence of endodontic interappoint emergencies in the two groups was compared.Results In the test group,the incidence of endodontic interappoint emergencies was 7.55%,and in the control group,the incidence was 22%.There was significant difference between the two groups(P < 0.05).Conclusions Using crown-down technique in the root canal preparation can decrease the incidence of endodontic interappoint emergencies.更多还原