根尖切除术是口腔科门诊常用的手术方法。传统的根尖切除方法,是用骨凿敲击、去骨、切断根尖。手术费时费工、震动大、而且手术很难达到预想的长度、甚至发生牙齿脱位等手术并发症,术后反应也较重。为了改进这一手术方法,我科自1982年7月至1984年6月应用汽涡轮高速牙钻作根尖切除术,共26例。其中经根管充填瘘管未愈合16例,根尖囊肿8例, Apical resection is a commonly used surgical method in dental clinic. Traditional apical resection method is to use bone chisel percussion, bone removal, cutting off the apical. Time-consuming surgery, vibration, and surgery is difficult to achieve the desired length, and even surgical complications such as tooth dislocation, postoperative response is also heavier. In order to improve this surgical method, our department from July 1982 to June 1984 application of steam turbine high-speed dental root apical resection, a total of 26 cases. Among them, 16 cases were not healed by root canal fistula, 8 cases were apical cyst,