Obwegeser H L, Hadjianghelou O
University of Zürich.
Oral Surg Oral Med Oral Pathol. 1987 Nov;64(5):507-18. doi: 10.1016/0030-4220(87)90023-5.
Two different ways of correcting micromandibularism inherent in the bird-face deformity have been described. Both procedures may be applied to correct the symmetric or the asymmetric types of bird-face deformity. Both have the elongation in the front area by means of one- or two-step advancement genioplasty in common. The difference between the two procedures lies mainly in the way the elongation of the mandibular body is achieved. Procedure 2 advocates the elongation of the mandible by means of vertical osteotomy within the tooth-bearing area, and procedure 1 advocates the elongation of the mandible behind the tooth-bearing area by means of the extended sagittal split osteotomy. Both procedures are demonstrated by drawings and by cases of patients who have been operated on.
已经描述了两种矫正鸟面畸形所固有的小下颌畸形的不同方法。这两种手术都可用于矫正对称或不对称类型的鸟面畸形。两者都通过一步或两步前移颏成形术在前部区域进行延长。两种手术的区别主要在于下颌体延长的实现方式。手术2主张通过在牙列区域内进行垂直截骨来延长下颌骨，而手术1主张通过延长矢状劈开截骨术在牙列区域后方延长下颌骨。两种手术都通过示意图和接受手术的患者病例进行展示。
