Objective To investigate the the treatment of class Ⅲ malocclusion by orthognathic surgery combined with postoperative orthodontics.Methods Nine patients with skeletal class Ⅲ malocclusion were treated by "surgery-first approach" without pre-surgical orthodontic from January 2012 to August 2014.The studied sample consisted of 7 women and 2 men (aged 15-28 years old, mean age 19.7 years), who had obvious mandibular protrusion.2 to 3 days after surgery, intermaxillary traction was used to made the maxilla and mandible together by board;we replaced a rubber band every 2 to 3 days and lasted for four weeks.We would dismantle board and performed conventional orthodontic treatment after patient's facial swelling subsided, and the positional relationship between the jaw stabilized.Results The face type of 9 patients were greatly improved after orthodontic treatment for 6.5 to 19.5 months.Patients and their family members felt satisfied, and their occlusal function returned to normal.At 3 to 32 months follow-up, the postoperative appearance and occlusion were becoming good without obvious signs of recurrence.Conclusions The "surgery-first approach" is an effective method to treat skeletal class Ⅲ malocclusion.

目的:单侧唇裂红唇修复中唇红三角瓣的设计进行术前数据的定量分析,及通过术后数据的定量分析对术后效果进行评价.方法:青岛大学附属医院26例单侧唇裂患儿,手术前后进行健患侧各项数据的测量,术前数据包括健患侧唇长、干唇长、唇红三角瓣边长及底长;利用医学统计学方法得出术前数据的相关性并进行唇红三角瓣的设计,为单侧唇裂唇红修复时三角瓣的设计提供理论参考.术后测量数据包括健患侧唇长、干唇高度及唇高,运用医学统计学分析健患侧有无差异,从主观及客观两方面分析术后唇红部形态、对称性及患儿上唇唇红部形态等,综合评价手术中设计唇红三角瓣的效果.结果:唇裂裂隙程度与唇红三角瓣底长有明显的相关性,术前健侧与裂隙缘唇峰干唇的高度差和红唇三角瓣底长呈正相关(P＜0.05);26例唇红修复主观评价项平均得分均大于4分,客观评价术后健患侧干唇高度、唇高、唇长均无差异,整复效果令人满意.结论:依照本文设计唇红三角瓣的方法修复单侧唇裂可使上唇唇红获得良好形态效果.