2种不同方法在下颌中位近中水平阻生智牙拔除术的疗效比较

Comparison of two methods for removal of mandibular third molar with mesioangular and horizontal impaction

目的:比较"T"形截断法与单纯锤凿劈冠法拔除下颌中位近中水平阻生智牙的疗效。方法:138例需要拔除单侧下颌中位近中水平阻生智牙的患者,随机分为A、B2组,A组70例,B组68例。A组采用"T"形截断法,B组采用传统锤凿冠劈法,去除阻力后拔除。对拔牙术中、术后并发症进行观察,采用SPSS13.0软件包对数据进行统计学分析。结果:A组术中、术后并发症显著少于B组(P<0.05)。结论:"T"形截断法在下颌中位近中水平阻生智牙拔除术中创伤小、并发症少,值得临床推广。

PURPOSE： To compare the clinical efficacy of T-shaped splitting combining Turbo-drill removal with traditional extraction in removal of mandibular third molar with mesioangular and horizontal impaction. METHODS： A total of 138 patients who required removal of mandibular third molar with mesioangular and horizontal impaction were included in this study. The patients were randomly divided into two groups： group A （70 cases） and group B （68 cases）. Patients in group A underwent extraction of the impacted mandibular third molar with T-shaped splitting combining Turbo-drill removal technique, while patients in group B underwent mandibular third molar extraction with traditional method. The operation time, intraoperative and postoperative complications were recorded to assess the effects of two methods. SPPSS 13.0 software package was used for statistical analysis. RESULTS： The intraoperative and postoperative complication incidence in group A was significantly lower than that of group B （P〈0.05）. CONCLUSIONS： The method of T-shaped splitting combining Turbo-drill in removal of mandibular third molar with mesioangular and horizontal impaction is safe and with fewer complications. It is worthy of wide clinical application.