title: Relative oral health outcome trends between people inside and outside capital city areas of Australia.
abstract: BACKGROUND
  The aim of this study was to evaluate relative change over 17 years in clinical oral health outcomes inside and outside capital city areas of Australia.
  
  
  METHODS
  Using data from the National Oral Health Survey of Australia 1987-88 and the National Survey of Adult Oral Health 2004-06, relative trends in clinical oral health outcomes inside and outside capital city areas were measured by age and gender standardized changes in the percentage of edentate people and dentate adults with less than 21 teeth, in mean numbers of decayed, missing and filled teeth, and mean DMFT index.
  
  
  RESULTS
  There were similar reductions inside and outside capital city areas in the percentage of edentate people (capital city 63.7%, outside capital city 60.7%) and dentate people with less than 21 teeth (52.5%, 50.1%), in the mean number of missing teeth (34.3%, 34.5%), filled teeth (0.0%, increase of 5.5%), and mean DMFT index (21.2%, 19.2%). The reduction in mean number of decayed teeth was greater in capital city areas (78.0%) than outside capital city areas (50.0%).
  
  
  CONCLUSIONS
  Trends in four of the five clinical oral health outcomes demonstrated improvements in oral health that were of a similar magnitude inside and outside capital city areas of Australia.
authors.affiliation: Australian Research Centre for Population Oral Health, School of Dentistry, The University of Adelaide, Adelaide, South Australia. leonard.crocombe@adelaide.edu.au
authors.forename: L A
authors.initials: LA
authors.lastname: Crocombe
authors.forename: J F
authors.initials: JF
authors.lastname: Stewart
authors.forename: P D
authors.initials: PD
authors.lastname: Barnard
authors.forename: G D
authors.initials: GD
authors.lastname: Slade
authors.forename: K
authors.initials: K
authors.lastname: Roberts-Thomson
authors.forename: A J
authors.initials: AJ
authors.lastname: Spencer
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001315:Australia / Q000453:epidemiology; D003430:Cross-Sectional Studies; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology; D003793:Dental Restoration, Permanent / Q000706:statistics & numerical data; D005260:Female; D006297:Health Services Accessibility / Q000706:statistics & numerical data; D006305:Health Status Indicators; D006801:Humans; D007575:Jaw, Edentulous / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009909:Oral Health; D012423:Rural Health / Q000706:statistics & numerical data*; D012737:Sex Factors; D014076:Tooth Diseases / Q000453:epidemiology*; D016388:Tooth Loss / Q000453:epidemiology; D014504:Urban Health / Q000706:statistics & numerical data*; D055815:Young Adult