Treatment outcome of bimaxillary surgery for asymmetric skeletal class II deformity

Objectives Facial asymmetry is one of the main concerns in patients with a dentofacial deformity. The aims of the study were to (1) evaluate the changes in facial asymmetry after bimaxillary surgery for asymmetric skeletal class II deformity and (2) compare preoperative and postoperative facial asym...

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Bibliographic Details
Published in:Clinical oral investigations 2019-02, Vol.23 (2), p.623-632
Main Authors: Chen, Yun-Fang, Liao, Yu-Fang, Chen, Yin-An, Chen, Yu-Ray
Format: Article
Language:English
Subjects:
Adult
Asymmetry
Computed tomography
Cone-Beam Computed Tomography
Dental occlusion
Dentistry
Face
Facial Asymmetry - surgery
Female
Humans
Jaw
Male
Malocclusion, Angle Class III - surgery
Maxilla - surgery
Maxillofacial surgery
Medicine
Original Article
Orthognathic Surgical Procedures - methods
Patients
Surgery
Surgical outcomes
Treatment Outcome
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Summary:Objectives Facial asymmetry is one of the main concerns in patients with a dentofacial deformity. The aims of the study were to (1) evaluate the changes in facial asymmetry after bimaxillary surgery for asymmetric skeletal class II deformity and (2) compare preoperative and postoperative facial asymmetry of class II patients with normal controls. Materials and methods The facial asymmetry was assessed for 30 adults (21 women and 9 men, mean age: 29.3 years) who consecutively underwent bimaxillary surgery for asymmetric skeletal class II deformity using cone-beam computed tomography before and at least 6 months after surgery. Thirty soft tissue and two dental landmarks were identified on each three-dimensional facial image, and the asymmetry index of each landmark was calculated. Results were compared with those of 30 normal control subjects (21 women and 9 men, mean age: 26.2 years) with skeletal class I structure. Results Six months after surgery, the asymmetric index of the lower face and total face decreased significantly (17.8 ± 29.4 and 16.6 ± 29.5 mm, respectively, both p  
ISSN:1432-6981
1436-3771
DOI:10.1007/s00784-018-2462-6