title: Tooth wear and sleep quality: A study of police officers and non-police officers.
abstract: OBJECTIVE
  A cross-sectional study was performed to assess the prevalence of tooth wear facets and sleep disorders.
  
  
  METHODS
  The sample was divided into two groups: Group I: police officers (n = 144), and Group II: industrial workers (n = 142). A self-reported questionnaire, a clinical examination recorded in the dental records, and the Brazilian version of the Pittsburgh Sleep Questionnaire Index were used for data collection. Descriptive analysis, chi-squared and multiple logistic regression were used as statistical tests at a 5% significance level.
  
  
  RESULTS
  Group I was almost twice as likely to have tooth wear facets as was Group II (OR = 1.88 95% CI = 1.03-3.44). Sleep disorders were worse among the participants of Group I.
  
  
  CONCLUSIONS
  The type of profession exerted an influence on sleep disorders and the presence of wear facets among the groups, with police officers most likely to suffer from these disorders.
authors.affiliation: a Department of Pediatric Dentistry and Orthodontics , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.
authors.forename: Junia Maria
authors.initials: JM
authors.lastname: Serra-Negra
authors.affiliation: b Department of Clinical Dentistry , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.
authors.forename: Marcos Simões
authors.initials: MS
authors.lastname: Aquino
authors.affiliation: b Department of Clinical Dentistry , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.
authors.forename: Maria Elisa Sousa
authors.initials: MES
authors.lastname: Silva
authors.affiliation: c Department of Public Health , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.
authors.forename: Mauro Henrique
authors.initials: MH
authors.lastname: Abreu
authors.affiliation: b Department of Clinical Dentistry , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.
authors.forename: Rodrigo Richard
authors.initials: RR
authors.lastname: Silveira
mesh_terms: D001938:Brazil / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D016495:Police; D015995:Prevalence; D012307:Risk Factors; D012893:Sleep Wake Disorders / Q000453:epidemiology*; D011795:Surveys and Questionnaires; D057085:Tooth Wear / Q000453:epidemiology*
keywords: Behavior; bruxism; dentistry; epidemiology; sleep disorder; tooth wear