title: The role of occlusal factors on the occurrence of temporomandibular disorders.
abstract: OBJECTIVE
  The aim of this study was to investigate the relationship between occlusal factors and temporomandibular disorders (TMD).
  
  
  METHODS
  One hundred patients were selected among those who sought medical or dental care in public practice in Recife, Brazil. The presence of malocclusions and absence of five or more posterior teeth were evaluated by the clinical exam. TMD diagnosis was given using Research Diagnostic Criteria (RDC/TMD). Statistics were carried out using Fisher and Mann-Whitney methods with 5% significance level, as well as multiple logistic regression analysis.
  
  
  RESULTS
  The sample was mainly comprised of women (83%), individuals over 30 years old (57%) and singles (53%). The percentage of TMD and malocclusion in total sample was 42% and 50%, respectively, while in TMD subjects, malocclusion was present in 38.1%. There was no association between TMD and the occlusal factors studied.
  
  
  CONCLUSIONS
  It can be concluded that malocclusion and loss of five or more posterior teeth does not contribute to TMD.
authors.forename: Stéphanie Trajano
authors.initials: ST
authors.lastname: de Sousa
authors.forename: Victor Villaça Cardoso
authors.initials: VV
authors.lastname: de Mello
authors.forename: Bruno Gama
authors.initials: BG
authors.lastname: Magalhães
authors.forename: Mariana Pacheco Lima
authors.initials: MP
authors.lastname: de Assis Morais
authors.forename: Marcia Maria Vendiciano Barbosa
authors.initials: MM
authors.lastname: Vasconcelos
authors.forename: Arnaldo
authors.initials: A
authors.lastname: de França Caldas Junior
authors.forename: Simone Guimarães Farias
authors.initials: SG
authors.lastname: Gomes
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001938:Brazil / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000150:complications* / Q000453:epidemiology; D008875:Middle Aged; D013705:Temporomandibular Joint Disorders / Q000453:epidemiology / Q000209:etiology*; D016388:Tooth Loss / Q000150:complications* / Q000453:epidemiology
keywords: Dental occlusion,; Malocclusion,; Temporomandibular joint dysfunction syndrome,; Tooth loss