title: Impact of orthosurgical treatment phases on oral health-related quality of life.
abstract: BACKGROUND
  In this cross-sectional study, we investigated the impact of the orthosurgical treatment phases on the oral health-related and condition-specific quality of life (QoL) of patients with dentofacial deformities.
  
  
  METHODS
  Two hundred fifty-four orthognathic patients were allocated into 4 groups according to treatment phase: initial (not yet treated), presurgical orthodontics, postsurgical orthodontics, and retention. Data were collected using the Oral Health Impact Profile to evaluate the oral health-related QoL, the Orthognathic QoL Questionnaire to analyze the condition-specific QoL, and the Index of Orthodontic Treatment Need to assess malocclusion severity and esthetic impairment. Specific malocclusion characteristics were also documented.
  
  
  RESULTS
  A negative binomial regression analysis showed that the initial group had a more negative oral health-related QoL than did the postsurgical, presurgical, and retention groups (relative risks, 1, 0.79, 0.74 and 0.25, respectively). The initial group had a more negative condition-specific QoL than did the presurgical, postsurgical, and retention groups (relative risks, 1, 0.77, 0.38 and 0.15, respectively) regardless of age, income, or education; women reported greater negative impacts than men. Certain occlusal traits were related to higher Orthognathic QoL Questionnaire scores (P <0.01).
  
  
  CONCLUSIONS
  Patients who completed their orthosurgical treatment had a significantly better oral health-related QoL and a more positive esthetic self-perception than did those undergoing treatment and those who were untreated. Crowding, crossbite, open bite, concave profile, edge-to-edge overjet, or Class III malocclusion negatively affected oral health-related QoL.
authors.affiliation: Postgraduate student, Clinic of Orthodontics, State University of Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address: palomares.nathalia@gmail.com.
authors.forename: Nathália Barbosa
authors.initials: NB
authors.lastname: Palomares
authors.affiliation: Associate professor, Department of Preventive and Social Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Roger Keller
authors.initials: RK
authors.lastname: Celeste
authors.affiliation: Associate professor, Clinic of Orthodontics, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
authors.forename: José Augusto M
authors.initials: JA
authors.lastname: Miguel
mesh_terms: D000293:Adolescent; D000328:Adult; D001294:Attitude to Health; D003430:Cross-Sectional Studies; D063169:Dentofacial Deformities / Q000523:psychology / Q000601:surgery; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D061326:Index of Orthodontic Treatment Need; D008297:Male; D008310:Malocclusion / Q000145:classification / Q000523:psychology / Q000601:surgery; D008313:Malocclusion, Angle Class III / Q000523:psychology / Q000601:surgery; D008875:Middle Aged; D024343:Open Bite / Q000523:psychology / Q000601:surgery; D009909:Oral Health; D009967:Orthodontic Appliances; D018704:Orthodontic Retainers; D056948:Orthognathic Surgical Procedures / Q000523:psychology*; D057887:Overbite / Q000523:psychology / Q000601:surgery; D011788:Quality of Life; D012649:Self Concept; D012737:Sex Factors; D055815:Young Adult