title: Dental caries experience in Mexican schoolchildren from rural and urban communities.
abstract: OBJECTIVE
  To compare dental caries experience in Mexican rural and urban settings.
  
  
  METHODS
  Cross-sectional samples of schoolchildren.
  
  
  METHODS
  A school in Mexico City and a rural school in a remote area of the Oaxaca State in Southern Mexico.
  
  
  METHODS
  A total of 347, 9- to 10-year-old schoolchildren (rural area, 131 children; urban, 216) was examined by two standardised dentists using the WHO 1987 criteria.
  
  
  METHODS
  Data were analysed in terms of central tendency measures and 95 per cent confidence intervals.
  
  
  RESULTS
  Caries prevalence was 91.6 per cent in the urban area, and 54.4 per cent in the rural area (P < 0.05). DMFT in 10-year olds was 1.93 (sd 1.72) and 0.40 (sd 0.76) in urban and rural areas respectively (95 per cent CI 1.16-1.89). The entire DMFT/dmft indices in the rural group were made up of the decayed component.
  
  
  CONCLUSIONS
  There is a large difference in the prevalence and distribution of dental caries between rural and urban Mexican children. Dental treatment background also differs markedly. Findings highlight the need to establish distinct preventative and rehabilitative treatment strategies tailored to meet the specific needs of different population groups.
authors.affiliation: CBS. Depto. Atención a la Salud UAM-X, Mexico D.F., Mexico.
authors.forename: M E
authors.initials: ME
authors.lastname: Irigoyen
authors.forename: I F
authors.initials: IF
authors.lastname: Luengas
authors.forename: A
authors.initials: A
authors.lastname: Yashine
authors.forename: A M
authors.initials: AM
authors.lastname: Mejía
authors.forename: G
authors.initials: G
authors.lastname: Maupomé
mesh_terms: D002648:Child; D003430:Cross-Sectional Studies; D004245:DMF Index; D003627:Data Interpretation, Statistical; D003731:Dental Caries / Q000453:epidemiology*; D003906:Developing Countries / Q000706:statistics & numerical data*; D006801:Humans; D008800:Mexico / Q000453:epidemiology; D015995:Prevalence; D012423:Rural Health / Q000706:statistics & numerical data*; D014504:Urban Health / Q000706:statistics & numerical data*