正颌外科手术后唇闭合压力、咬合力及接触面积恢复情况的评估。
Evaluation of recovery in lip closing pressure and occlusal force and contact area after orthognathic surgery.
作者信息
Ueki Koichiro, Moroi Akinori, Sotobori Megumi, Ishihara Yuri, Marukawa Kohei, Iguchi Ran, Kosaka Akihiko, Ikawa Hiroumi, Nakazawa Ryuichi, Higuchi Masatoshi
机构信息
Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi 409-3898, Japan.
Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi 409-3898, Japan.
出版信息
J Craniomaxillofac Surg. 2014 Oct;42(7):1148-53. doi: 10.1016/j.jcms.2014.01.047. Epub 2014 Jan 25.
PURPOSE
The purpose of this study was to evaluate the relationship between lip closing force, occlusal contact area and occlusal force after orthognathic surgery in skeletal Class III patients.
SUBJECTS AND METHODS
The subjects consisted of 54 patients (28 female and 26 male) diagnosed with mandibular prognathism who underwent sagittal split ramus osteotomy with and without Le Fort I osteotomy. Maximum and minimum lip closing forces, occlusal contact area and occlusal force were measured pre-operatively, 6 months and 1 year post-operative.
RESULTS
Maximum and minimum lip closing forces, occlusal contact area and occlusal force increased with time after surgery, however a significant increase was not found in the occlusal contact area in women. In increased ratio (6 months/pre-operative and 1 year/pre-operative), the maximum lip closing force was significantly correlated with the occlusal contact area (P < 0.0001).
CONCLUSIONS
This study suggested that orthognathic surgery could improve the occlusal force, contact area and lip closing force, and an increase ratio in maximum lip closing force was associated with an increased ratio in occlusal contact area.
目的
本研究旨在评估正颌外科手术后骨骼Ⅲ类患者的唇闭合力量、咬合接触面积与咬合力之间的关系。
对象与方法
研究对象包括54例诊断为下颌前突的患者（28例女性，26例男性），他们接受了下颌升支矢状劈开截骨术，部分患者还接受了Le Fort I型截骨术。在术前、术后6个月和1年测量最大和最小唇闭合力量、咬合接触面积和咬合力。
结果
术后最大和最小唇闭合力量、咬合接触面积和咬合力随时间增加，但女性的咬合接触面积未发现显著增加。在增加比例（术后6个月/术前和术后1年/术前）方面，最大唇闭合力量与咬合接触面积显著相关（P < 0.0001）。
结论
本研究表明，正颌外科手术可改善咬合力、接触面积和唇闭合力量，最大唇闭合力量的增加比例与咬合接触面积的增加比例相关。
Zotero 插件