title: Parent-assessed quality of life among adolescents undergoing orthodontic treatment: a 12-month follow-up.
abstract: OBJECTIVE
  To assess parents' and caregivers' view of the first twelve months of adolescents' orthodontic treatment with fixed appliances and to assess the evaluative properties of the Brazilian version of the Parental-Caregiver Perceptions Questionnaire (P-CPQ) in the orthodontic setting.
  
  
  METHODS
  Data from a sample of 96 parents and caregivers of adolescents undergoing orthodontic treatment with fixed appliances were collected by means of P-CPQ. Assessments were performed before banding and bracket bonding (T1) and 12 months after placement of fixed appliances (T2). Statistical analysis included Wilcoxon signed-rank test for the overall P-CPQ score and Bonferroni correction for P-CPQ subscales. The evaluative properties of the P-CPQ were assessed through responsiveness calculation and the minimally clinical important difference (MCID).
  
  
  RESULTS
  Among the 96 participants, 76 were mothers of patients, 16 were fathers, and four were other family members. Adolescents' mean age was 11.49 ± 0.50 years. Most families earned equal to or less than three times the Brazilian monthly minimum wage. There was significant improvement in the emotional and social well-being subscales (p< 0.001), which contributed to improve patient's overall quality of life (p< 0.001). Reductions in scores were associated with clinically meaningful moderate changes in the overall score as well as in the emotional and social well-being subscales. The MCID was 6.16 for the P-CPQ overall score.
  
  
  CONCLUSIONS
  Parents and caregivers reported significant improvement in the quality of life of adolescents undergoing orthodontic treatment with fixed appliances.
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Lucas Guimarães
authors.initials: LG
authors.lastname: Abreu
authors.affiliation: UNINCOR, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Camilo Aquino
authors.initials: CA
authors.lastname: Melgaço
authors.affiliation: Department of Community and Preventive Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Mauro Henrique Nogueira Guimaraes
authors.initials: MH
authors.lastname: Abreu
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Elizabeth Maria Bastos
authors.initials: EM
authors.lastname: Lages
authors.affiliation: Department of Pediatric Dentistry and Orthodontics, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
authors.forename: Saul Martins
authors.initials: SM
authors.lastname: Paiva
mesh_terms: D001294:Attitude to Health; D001938:Brazil; D002648:Child; D004644:Emotions; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000145:classification / Q000523:psychology* / Q000628:therapy; D016910:Orthodontic Brackets; D009971:Orthodontics, Corrective / Q000523:psychology*; D010290:Parents; D011788:Quality of Life / Q000523:psychology*; D015203:Reproducibility of Results; D012919:Social Behavior; D011795:Surveys and Questionnaires / Q000592:standards