title: Self-ligating brackets and their impact on oral health-related quality of life in Chinese adolescence patients: a longitudinal prospective study.
abstract: BACKGROUND
  Although the associations between orthodontic and oral health-related quality of life (OHRQOL) have been explored, little research has been done to address the influence of brackets type on perceived OHRQOL. The aim of this study was to assess whether the levels of OHRQOL in Chinese adolescence patients were influenced by the type of brackets.
  
  
  METHODS
  One hundred fifty Chinese orthodontic adolescence patients completed the 14-item Oral Health Impact Profile (OHIP-14, Chinese version) at five distinct intervals: after insertion of the fixed appliance at 1 week (T1), 1 month (T2), 3 months (T3), and 6 months (T4); and after treatment (T5).
  
  
  RESULTS
  Patients with self-ligating brackets were associated with less pain and discomfort at any intervals compared with conventional brackets, but no significant difference of overall OHIP-14 scores could be found between two groups. Moreover, in both groups, overall scores at T1 and T2 were significantly higher than the scores at any other intervals in both groups.
  
  
  CONCLUSIONS
  The type of orthodontic appliance did not affect oral health-related quality of life in Chinese adolescence patients.
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, No. 113 Xueyuan Xi Road, Wenzhou 325027, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, No. 113 Xueyuan Xi Road, Wenzhou 325027, China.
authors.forename: MinLing
authors.initials: M
authors.lastname: Zheng
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, No. 113 Xueyuan Xi Road, Wenzhou 325027, China.
authors.forename: Jiaqiang
authors.initials: J
authors.lastname: Lin
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, No. 113 Xueyuan Xi Road, Wenzhou 325027, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Orthodontics, Hospital of Stomatology, Wenzhou Medical University, No. 113 Xueyuan Xi Road, Wenzhou 325027, China.
authors.forename: Zhen Yu
authors.initials: ZY
authors.lastname: Ni
mesh_terms: D000293:Adolescent; D002681:China; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009909:Oral Health; D016910:Orthodontic Brackets / Q000009:adverse effects; D011446:Prospective Studies; D062486:Public Health Surveillance; D011788:Quality of Life; D011795:Surveys and Questionnaires