title: Influence of generalized joint hypermobility on temporomandibular joint and dental occlusion: a cross-sectional study.
abstract: OBJECTIVE
  To evaluate the dental occlusion and temporomandibular joint in women with and without generalized joint hypermobility.
  
  
  METHODS
  Generalized joint hypermobility was assessed by the Beighton score. Individuals were divided into two groups: with and without hypermobility. The Research Diagnostic Criteria for Temporomandibular Disorders was used to evaluate the temporomandibular joint. Dental occlusion was assessed according to Angle classification, overjet and overbite measures, presence of open bite or crossbite, pattern of disocclusion, and occlusal interference.
  
  
  RESULTS
  Forty-three women participated voluntarily in the study: 17 in the group with hypermobility and 26 in the group without hypermobility. The frequencies of joint noise and deviation during mouth opening were greater in the hypermobility group (52.9% vs. 38.5% and 76.5% vs. 50%, respectively), but without statistical significance. None of the volunteers presented ideal occlusion and no significant difference was found in Angle Class between the groups. The hypermobility group presented a higher percentage of changes in occlusion (29.4% of overbite, 47.1% of overjet, and 17.6% of crossbite), with crossbite showing statistical difference between the groups.
  
  
  CONCLUSIONS
  Hypermobility does not influence occlusion and range of mandibular motion in the women assessed. Nevertheless, the higher percentage of articular noise and uncorrected deviation during mouth opening shown by the group with hypermobility, even without statistical difference, may constitute evidence of correlation between hypermobility and temporomandibular disorder.
authors.affiliation: Universidade Federal de Santa Maria - UFMS - Santa Maria (RS), Brasil.
authors.forename: Lais
authors.initials: L
authors.lastname: Chiodelli
authors.affiliation: Universidade Federal de Santa Maria - UFMS - Santa Maria (RS), Brasil.
authors.forename: Andrielle de Bitencourt
authors.initials: AB
authors.lastname: Pacheco
authors.affiliation: Universidade Federal de Santa Maria - UFMS - Santa Maria (RS), Brasil.
authors.forename: Taiane Secretti
authors.initials: TS
authors.lastname: Missau
authors.affiliation: Universidade Federal de Santa Maria - UFMS - Santa Maria (RS), Brasil.
authors.forename: Ana Maria Toniolo da
authors.initials: AM
authors.lastname: Silva
authors.affiliation: Universidade Federal de Santa Maria - UFMS - Santa Maria (RS), Brasil.
authors.forename: Eliane Castilhos Rodrigues
authors.initials: EC
authors.lastname: Corrêa
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000150:complications* / Q000503:physiopathology; D008310:Malocclusion / Q000209:etiology* / Q000503:physiopathology; D013705:Temporomandibular Joint Disorders / Q000150:complications* / Q000503:physiopathology; D055815:Young Adult