骨性Ⅲ类错[牙合]正颌术后颊部宽度变化的三维研究  

Three-dimensional evaluation of cheek soft tissue changes after mandibular setback or bimaxillary surgery in skeletal Class Ⅲ patients

作　　者：袁玲君[1] 沈国芳[1] 吴勇[1] 毛丽霞[1] 夏韫晖[1] 房兵[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院·口腔医学院口腔颌面外科正颌-正畸治疗中心,200011

出　　处：《中华口腔正畸学杂志》2012年第2期70-74,共5页Chinese Journal of Orthodontics

摘　　要：目的探讨骨性Ⅲ类错骀患者正颌术后颊部宽度变化的规律。方法20例完成正颌手术的骨性Ⅲ类错骀患者，男性9例，女性11例，平均年龄（25．06±5．33）岁，其中9例接受双侧下颌升支矢状劈开截骨（Bilateralsagittalsplitramusosteotomy，BSSRO）后退术，11例接受Lefort-Ⅰ型截前移骨术和BSSRO后退术，分别在术前2周（T1）、术后6个月（T2）进行面部激光扫描检查，手术前后软组织面型的三维图像在同一坐标系中完成测量，分析颊部宽度的变化。结果在经过外眦连线中点的冠状截面上，20例患者术后单侧颊部软组织宽度增加（3．58±2．21）mm，不同性别之间无显著性差异；下颌后退组单侧颊部增宽（1．74±0．76）mm，双颌手术组单侧颊部增宽（5．00±1．86）rnnl，两组之间存在显著性差异（P=0．001）。结论骨性Ⅲ类错殆接受单纯下颌后退或者双颌手术后，颊部宽度均有增加的趋势。Objective To investigate the transverse changes of cheek soft tissue in skeletal Class Ⅲpatients after orthognathic surgery using three-dimensional （3D） laser scanning technique. Methods Twenty consecutive patients （ 9 males and 11 females, aged 25. 06＋5. 33 years） were collected. 3D facial scan images were recorded pre-operatively and over 6 months post-operatively. The changes of facial soft tissues were measured using RapidForm 2006. Independent and paired t-tests were performed for statistical analysis. Results After mandibular setback with or without maxillary advancement in Class Ⅲ patients, the width of cheek was increased by 3.58±2. 21 mm at the coronal section through the midpoint of the exocanthions. The soft tissue width of the cheek area increased more in the two-jaw group （5. 00 ±1. 86） mm than in the one-jaw group （1. 74 ±0. 76） rnm. Conelusions After the surgery the facial contour of skeletal Class Ill patients became more rounded and shorter, ang the cheek width tended to increase.

关 键 词：面部软组织 正颌手术 三维测量 

分 类 号：R783.5[医药卫生—口腔医学]