上颌骨骨折合并有其他重要脏器的损伤，为挽救病人的生命，骨折往往得不到及时有效的治疗，产生了骨断端的错位愈合，出现咬合错乱及面中１／３塌陷畸形等开发症。传统治疗方法往往通过调来改善病人不良的咬合关系，难以取得较好的疗效，成为治疗上的一个难题。７０年代... In order to save the patient's life, the fracture of the maxilla is often not treated timely and effectively, resulting in the dislocation healing of the fracture of the bone, the occlusion disorder and the collapse of the middle third of the face disease. Traditional treatment methods are often used to improve the patient's bad occlusion of the bite, it is difficult to achieve better efficacy, a treatment problem. 70's ...