面中部复杂性畸形从病因上一般分为发育和外伤二种类型。发育型通常多见于先天性唇、腭裂、上颌发育不良及不同程度的鞍鼻。外伤型常为上颌骨、鼻骨及颧骨骨折后错位愈合。这类病人单以口腔正畸治疗得不到较好效果,常需采用外科整复手术。应用松动上颌骨方法矫治前颌开(牙合)畸形虽早有报告;但时隔半个世纪之后才先后被人重视起来。国内自八十年代已有报道。我们对一 Complex facial deformity from the general cause of the disease is divided into two types of development and trauma. Developmental type is more common in congenital lip, cleft palate, maxillary dysplasia and varying degrees of saddle nose. Trauma type is often the maxillary, nasal and zygomatic fracture dislocation healing. Oral orthodontic treatment of such patients alone can not get better results, often require the use of surgical plastic surgery. Application of the maxillary approach to the treatment of open jaw (occlusal) deformity has long been reported; but after half a century later has been valued. China has been reported since the eighties. We are one