title: Changes in quality of life after orthognathic surgery: a comparison based on the involvement of the occlusion.
abstract: OBJECTIVE
  The aims of this study were to investigate the impact of dentofacial deformities on quality of life in Chinese patients and to make a comparison between facial deformities that do and do not involve the occlusion.
  
  
  METHODS
  Consecutive patients with dentofacial deformities requiring surgical correction were divided into 2 groups. Group A represented those who had undergone presurgical orthodontic treatment, and group B represented patients with square faces or prominent zygoma. All subjects were assessed by the 36-item Short-Form Health Survey (SF-36) and the 22-item Orthognathic Quality of Life Questionnaire (OQLQ-22) during 2 time periods: preoperatively and 6-8 months postoperatively.
  
  
  RESULTS
  The SF-36 revealed that there was significant difference in role physical and bodily pain (P < .05) preoperatively between the 2 groups, whereas postoperatively the difference was not significant. Preoperatively, there was significant difference in oral function and facial esthetics components of OQLQ (P < .001), whereas postoperatively only the oral function domain showed significant difference.
  
  
  CONCLUSIONS
  Orthognathic surgery had a positive impact on patients' quality of life regardless of the type of deformity. OQLQ showed better discerning ability and was able to point out the subtle differences between the 2 groups.
authors: State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, China.
authors: Ashish
authors: A
authors: Khadka
authors: Yao
authors: Y
authors: Liu
authors: Jihua
authors: J
authors: Li
authors: Songsong
authors: S
authors: Zhu
authors: En
authors: E
authors: Luo
authors: Ge
authors: G
authors: Feng
authors: Jing
authors: J
authors: Hu
mesh_terms: D000293:Adolescent; D000328:Adult; D001294:Attitude to Health; D002681:China; D004644:Emotions; D004954:Esthetics; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008310:Malocclusion / Q000523:psychology / Q000601:surgery*; D008334:Mandible / Q000601:surgery; D008409:Mastication / Q000502:physiology; D008603:Mental Health; D009971:Orthodontics, Corrective; D056948:Orthognathic Surgical Procedures / Q000523:psychology*; D010146:Pain / Q000523:psychology; D011788:Quality of Life; D012649:Self Concept; D012919:Social Behavior; D055815:Young Adult; D015050:Zygoma / Q000601:surgery