title: Relationship between amount of overtime work and untreated decayed teeth in male financial workers in Japan.
abstract: OBJECTIVE
  Continuous or frequent overtime work has been shown to have harmful effects on human health. Meanwhile, one of the main reasons for tooth loss is caries. The aim of this study was to assess the relationship between overtime work and untreated decayed teeth in male financial workers.
  
  
  METHODS
  The participants were recruited by applying screening procedures to a pool of Japanese registrants in an online database. Participants filled out a questionnaire about their oral health, behavior, and working conditions. Participants comprised a total of 951 financial male workers, aged 25-64 years.
  
  
  RESULTS
  The likelihood of tooth decay increased with amount of overtime work (p=0.002). After adjusting for age, income, educational background, oral hygiene behavior, snacking behavior, regular dental visitation, bad interpersonal relationships at work, and smoking habit, a multiple logistic regression analysis found that participants with 45-80 h of overtime work (odds ratio [OR], 2.56; 95% confidence interval [CI], 1.23-5.33) or over 80 h of overtime work (OR, 3.01; 95% CI, 1.13-7.97) were more likely to have untreated tooth decay. The percentage of participants who gave "too busy with work" as the reason for leaving decayed teeth untreated increased with amount of overtime (p<0.001).
  
  
  CONCLUSIONS
  These results indicate that overtime work is strongly related to untreated decayed teeth. In addition to oral health education and dental checkups, decreasing stress and decreasing the amount of overtime work may also have a positive effect on oral health in the workplace.
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College.
authors.forename: Koichi
authors.initials: K
authors.lastname: Yoshino
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College.
authors.forename: Seitaro
authors.initials: S
authors.lastname: Suzuki
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College.
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Ishizuka
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Takayanagi
authors.affiliation: Department of Epidemiology and Public Health, Tokyo Dental College.
authors.forename: Naoki
authors.initials: N
authors.lastname: Sugihara
authors.affiliation: Department of Social Security for Dentistry, Tokyo Dental College.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Kamijyo
mesh_terms: D000328:Adult; D015897:Comorbidity; D016208:Databases, Factual; D003729:Dental Care / Q000523:psychology* / Q000706:statistics & numerical data; D003731:Dental Caries / Q000453:epidemiology* / Q000523:psychology*; D005376:Financial Management; D015438:Health Behavior; D006801:Humans; D007400:Interprofessional Relations; D007564:Japan / Q000453:epidemiology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009910:Oral Hygiene / Q000523:psychology* / Q000706:statistics & numerical data; D012307:Risk Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D014940:Work Schedule Tolerance; D016526:Workload; D017132:Workplace
keywords: Financial workers; Job stress; Oral health behavior; Overtime work hours; Untreated decayed teeth