Characteristics and Corrective Outcome of Face Asymmetry by Orthognathic Surgery

被引：102

作者：

Ko, Ellen Wen-Ching ^{[1
,2
]}

Huang, Chiung Shing ^{[2
,3
]}

Chen, Yu Ray ^{[2
,4
]}

机构：

[1] Chang Gung Mem Hosp, Dept Craniofacial Orthodont, Taipei 105, Taiwan

[2] Chang Gung Univ, Grad Inst Craniofacial & Oral Sci, Taipei, Taiwan

[3] Chang Gung Mem Hosp, Dept Dent, Taipei 105, Taiwan

[4] Chang Gung Mem Hosp, Chang Gung Steering Comm, Taipei 105, Taiwan

来源：

JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY | 2009年 / 67卷 / 10期

关键词：

FACIAL ASYMMETRY; CRANIOFACIAL ASYMMETRY; DEFORMITIES; OSTEOTOMY; SYMMETRY; PLANE; MOUTH;

D O I：

10.1016/j.joms.2009.04.039

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Purpose: This study was conducted to identify the characteristics of facial asymmetry before surgery and to evaluate the facial skeletal changes and stability after 2-jaw orthognathic surgery. The ideal "double-cross grid" as fitting the key landmarks to the reference planes on posteroanterior cephalograms was set as the treatment goal. Patients and Methods: Twenty-seven adult patients, 18 female and 9 male Subjects, were evaluated before and after surgery and at completion of orthodontic treatment. Cephalometric measurements of posteroanterior and lateral cephalograms were obtained at 3 timings. Measurements of frontal facial photographs were recorded before and after treatment. Data from each time set were compared to evaluate surgical achievement and postsurgical stability. Results: All patients had original malocclusion of Class III in at least 1 side of the dentition except 1 patient. Total treatment duration was 15 +/- 3.5 months on average. Literality of the patients demonstrated left-side dominance in 18 patients and right-side dominance in 9 patients. After surgery, face symmetry, vas improved by correction of the occlusal plane cant, incisal dental axis, and chin deviation. Symmetry of bilateral gonial width was also improved significantly with good stability. Intergonial width was reduced by 3.4 mm during treatment. Soft tissue presented similar correction by leveling oral commissures and correcting chin deviation. The maxilla was moved forward 1.25 mm and upward 1.20 mm, and the mandible was setback 4.3 mm and upward 1.5 mm as measured from lateral cephalograms. All sagittal changes remained stable after surgery. Conclusion: Fitting skeletal landmarks into a double-cross grid on posteroanterior cephalogram is an attainable guide and goal for 2-jaw orthognathic correction of facial asymmetry. Symmetry was achieved and facial profile was improved after Surgery and remained stable afterward. The decrease of intergonial width indicated considerable remodeling of the bilateral gonial angle after surgery. (C) 2009 American Association of Oral and Maxillofacial Surgeons J Oral Maxillofac Surg 67:2201-2209, 2009

引用

页码：2201 / 2209

页数：9

共 28 条

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