本文报告43例312颗成年人前牙牙列畸形一期法外科正畸术，术式均采取一次截骨，形成可移动的带粘骨膜蒂的含牙骨块，固定待其愈合而达到矫治目的，并于术后3个月和1年2次随访。结果1年后的死髓率为2．88％，无1例牙骨块坏死。分析总结了术后并发症产生的原因及预防的措施，该术具有简便，并发症少，矫治时间短，疗效稳定的优点。 This article reports 43 cases of 312 adult anterior dentition malformation an orthodontic surgery, surgery are taken once the osteotomy, the formation of removable with mucoperiosteal pedicle-containing teeth, fixed to be cured to achieve the purpose of treatment, And follow-up 3 months and 1 year 2 times. The results of one year after the dead rate of 2.88%, no one case of bone block necrosis. Analysis and summary of the causes of postoperative complications and prevention measures, the surgery has the advantages of simple, less complications, shorter treatment time, stable efficacy.