摘要
目的评价骨性Ⅲ类错[牙合]正[牙合]术后正面观察唇部形态变化和微笑改善程度。方法2007—2015年在天津市口腔医院正畸科接受治疗的骨性Ⅲ类错[牙合]患者为正[牙合]手术组，另与正常[牙合]组比较，每组25例，均为成年男性。手术前后两组均拍摄正面照片，每张照片标记35个标志点。将标志点数字化，置于以鼻下点为原点XY坐标系中。分别比较静止和微笑时治疗前后唇部形态变化以及组间差异。结果正[牙合]手术组治疗前微笑时，上唇和下唇的位置较正常[牙合]组偏下，上唇和嘴角上移幅度小于正常[牙合]组。治疗后微笑时，两侧嘴角水平方向明显宽于手术前。正[牙合]手术后，患者微笑特征得到了明显改善，但是与正常[牙合]组比较，仍然有差异。结论骨性Ⅲ类错[牙合]患者在正[牙合]手术后，唇部形态有明显改善。
Objective To evaluate changes from the front in morphology and improvement degree of smiling lip after orthognathic surgery with class Ⅲ skeletal malocclusion. Methods Adult males in experiment were divided into two groups, orthognathic surgery group and the normal group, 25 in each group. Experimental subjects in orthognathic surgery group and the normal group were taken positive images before and after the surgery, respectively, and the 35 marks were labelled in ev- ery photoes. The mark points were put in the coordinate system of XY, where apophysiary point was original. Test was used to compare changes of lip shape in static and smiling situation before and after treatment and differences between groups. Results Position of upper and lower lip were lower than the normal group when smiling before treatment in orthognathic surgery group, and the upward amplitude of upper lip and angulus oris less than normal group. Between bilateral corner of mouth it was obviously wider than before horizontally when smiling after the treatment. After the surgery, the patient＇s smile characteristics were significantly improved, but there was still difference comparing with the normal group. Conclusions The lip shape of patients with Class Ⅲ skeletal malocclusion are significantly improved after orthognathic surgery.
作者
孙伟
侯敏
贾继宁
Sun Wei;Hou Min;Jia Jining(Department of Orthodontics,Stomatological Hospital,Tianjin 300041,China)
出处
《中华医学美学美容杂志》
2018年第4期268-270,共3页
Chinese Journal of Medical Aesthetics and Cosmetology
关键词
微笑
唇
骨性Ⅲ类
正[牙合]手术
形态
Smiling
Lip
Skeletal class Ⅲ
Orthognathic surgery
Morphology
作者简介
通信作者：孙伟，E-mail：sw128@sina．com
