title: Predictors of multiple tooth loss among socioculturally diverse elderly subjects.
abstract: OBJECTIVE
  This study identifies clinical factors that predict multiple tooth loss in a socioculturally diverse population of older adults.
  
  
  METHODS
  A total of 193 participants from English-, Chinese-, or Punjabi-speaking communities in Vancouver, British Columbia, with low incomes and irregular use of dental services were followed for 5 years as part of a clinical trial of a 0.12% chlorhexidine mouthrinse. The participants were interviewed and examined clinically, including panoramic radiographs, at baseline and annually for 5 years. Binary logistic regression was used to test the hypothesis that there was no difference between incidence of multiple (≥ 3) tooth loss in older people with various biologic, behavioral, prosthodontic, and cultural variables over 5 years.
  
  
  RESULTS
  Multiple tooth loss, which was distributed similarly among the groups in the trial, occurred in 39 (20%) participants over 5 years. The use of removable prostheses was the best predictor of loss, followed by the number of carious surfaces and number of sites with gingival attachment loss > 6 mm. The pattern of prediction was consistent across the three linguocultural groups.
  
  
  CONCLUSIONS
  The use of removable dentures was the dominant predictor of multiple tooth loss in the three communities, but that tooth loss was not significantly associated with the cultural heritage of the participants.
authors.affiliation: Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Osaka, Japan. tgonda@dent.osaka-u.ac.jp
authors.forename: Tomoya
authors.initials: T
authors.lastname: Gonda
authors.forename: Michael I
authors.initials: MI
authors.lastname: MacEntee
authors.forename: H Asuman
authors.initials: HA
authors.lastname: Kiyak
authors.forename: G Rutger
authors.initials: GR
authors.lastname: Persson
authors.forename: Rigmor E
authors.initials: RE
authors.lastname: Persson
authors.forename: Christopher
authors.initials: C
authors.lastname: Wyatt
mesh_terms: D000368:Aged; D000891:Anti-Infective Agents, Local / Q000627:therapeutic use; D001955:British Columbia / Q000453:epidemiology; D002681:China / Q000208:ethnology; D002710:Chlorhexidine / Q000627:therapeutic use; D003442:Crowns / Q000706:statistics & numerical data; D018864:Cultural Diversity; D003729:Dental Care / Q000706:statistics & numerical data; D003731:Dental Caries / Q000453:epidemiology; D003832:Denture, Partial, Removable / Q000706:statistics & numerical data; D003778:Dentures / Q000706:statistics & numerical data; D004522:Educational Status; D004846:Epithelial Attachment / Q000473:pathology; D005006:Ethnicity / Q000706:statistics & numerical data*; D005260:Female; D005500:Follow-Up Studies; D005882:Gingival Diseases / Q000453:epidemiology; D006801:Humans; D007194:India / Q000208:ethnology; D008297:Male; D008875:Middle Aged; D009067:Mouthwashes / Q000627:therapeutic use; D017622:Periodontal Attachment Loss / Q000453:epidemiology; D011203:Poverty / Q000706:statistics & numerical data; D011862:Radiography, Panoramic; D012307:Risk Factors; D012390:Root Canal Therapy / Q000706:statistics & numerical data; D016388:Tooth Loss / Q000453:epidemiology* / Q000208:ethnology
chemical_list: D000891:Anti-Infective Agents, Local; D009067:Mouthwashes; D002710:Chlorhexidine