两种方法在拔除下颌阻生第三磨牙中的疗效比较

Comparison of different extractions of impacted mandible third molars

目的:观察和比较两种拔除下颌阻生第三磨牙的临床疗效。方法:门诊200例下颌阻生第三磨牙随机分为两组,各100颗。分别采用传统锤凿去骨法和涡轮机去骨法拔除,记录手术时间、术后疼痛、张口受限等情况并进行统计学分析。结果:两种手术方法在手术时间、术后疼痛、张口受限、肿胀程度等方面有统计学差异(P<0.05),传统锤凿去骨组出现干槽症与下唇麻木分别为5例和1例,涡轮机去骨组分别为1例和0例,组间比较差异无统计学意义(P>0.05)。结论:与传统锤凿去骨法相比,采用涡轮机去骨法拔除下颌阻生第三磨牙手术时间短,术后并发症较少,值得临床推广。

Objective To observe and compare the outcomes of impacted mandibular third molar extraction by 2 kinds of methods. Methods 200 impacted mandibular third molars were randomly divided into two groups：lO0 teeth in traditional hammer and chisel extraction group and 100 teeth in high-speed turbine extraction group.The operating time, postoperative complications were observed. Results There was significantly difference between two groups in the operating time,the ache ofpostoperative, a reduced mouth opening and regional swelling（P〈O.O5）.While there was no significant difference in the incidence of dry socket and numbness of lower lip. Conclusion Compared with trational hammer and chisel technique, high-speed turbine extraction could shorten operating time and reduce the postoperaive complications.