片段弓技术与树脂夹板技术在青少年前牙脱位固定中的对比应用

目的探讨在青少年前牙脱位中，直丝弓片段弓技术与金属丝-树脂夹板技术复位固定脱位前牙的效果差异。方法选取2007～2012年在煤炭总医院口腔科急诊就诊的青少年前牙脱位患者共48例，随机分为两组。A组24例（38颗患牙），采用直丝弓片段弓固定技术；B组24例（30颗患牙），采用金属丝-树脂夹板固定技术。常规复位固定后．随访观察1年。对比两种固定方法的临床效果。结果采用直丝弓片段弓固定技术的24例患者（A组，38颗患牙）中，成功36颗，有效2颗，失败0颗，总有效率为100．00％；采用金属丝-树脂夹板固定技术的24例患者（B组，30颗患牙）中，成功22颗，有效3颗，失败5颗，总有效率为83．33％。两组总有效率比较，差异有统计学意义（P〈0．05）。结论急性青少年前牙脱位进行再植固定，直丝弓片段弓固定技术效果良好，明显优于金属丝-树脂夹板固定技术，是目前临床上较为理想的固位方法，值得临床推广应用。

Comparative application of segment arch techniques and resin splint techniques on fixing adolescent dislocation of anterior teeth

Objective To compare the curative effect of straight wire segment arch techniques and metal wire-resin splint techniques in reseting and fixing dislocated anterior teeth on adolescent dislocation of anterior teeth. Methods 48 adolescent patients with anterior teeth dislocation in medical emergency, at the department of stomatology of China Meitan General Hospital from 2007 to 2012, were selected and randomly divided into two groups. Group A included 24 patients （38 teeth） were given straight wire segment arch fixing techniques; group B included 24 patients （30 teeth） were given metal wire-resin splint fixing techniques. A one-year followed-up was conducted after conventional replan- tation and resetting, the clinical effect of two fixing techniques were compared. Results In group A （24 cases, 38 teeth）, 36 teeth were succeeded in replantation, 2 teeth were effective and 0 tooth was failing, total effective rate was 100.00%; and in group B （24 cases, 30 teech）, 22 teeth were succeeded in replantation, 3 teeth were effective and 5 teeth were failing, total effective rate was 83.33%, two groups were compared, the difference was statistically significant （P 〈 0.05）. Conclusion Resetting and fixing acute dislocated anterior teeth of adolescence, the effect of straight wire segment arch fixing techniques is well, obviously better than wire-resin splint fixing techniques. It is relatively ideal fixing techniques in clinic at present, and it deserves to be used widely in clinic.