title: [The prevalence of caries and associated factors in 12-year-old schoolchildren of Barcelona].
abstract: OBJECTIVE
  To find the prevalence of caries in the 12-year-old school population of the city of Barcelona.
  
  
  METHODS
  An epidemiological crossover survey of dental caries in a representative sample of children in Barcelona.
  
  
  METHODS
  739 children in the 7th year of basic education, who were twelve years old at the moment of the examination and came from 35 schools in the city of Barcelona, were examined.
  
  
  RESULTS
  Prevalence of caries was 52% (60% in girls and 45% in boys) and the CAOD index (teeth with caries, absent because of caries or permanent teeth with fillings) was 1.37 (1.70 for girls and 1.12 for boys). 51% of the permanent teeth affected by caries had been filled. The distribution of the CAOD index showed that 23% (almost a quarter of the population studied) of 12-year old schoolchildren in Barcelona had 3 teeth or more affected by caries. In the logistical regression analysis, gender (being a girl, OR = 1.69) and the absence of a regular programme of fluoride mouthwashes (OR = 1.69) were associated with having a higher caries index (CAOD equal to or above 3).
  
  
  CONCLUSIONS
  The results show caries indices which are generally low and a tendency to stability. The programmes of fluoride mouthwashes seem to be effective in decreasing the incidence of caries.
authors.affiliation: Facultad de Odontología, Universidad de Barcelona.
authors.forename: I
authors.initials: I
authors.lastname: Dolado
authors.forename: P
authors.initials: P
authors.lastname: Casañas
authors.forename: M
authors.initials: M
authors.lastname: Nebot
authors.forename: C
authors.initials: C
authors.lastname: Manau
mesh_terms: D002648:Child; D003430:Cross-Sectional Studies; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D009017:Morbidity / Q000639:trends; D015995:Prevalence; D011897:Random Allocation; D017678:Sex Distribution; D012959:Socioeconomic Factors; D013030:Spain / Q000453:epidemiology; D014505:Urban Population / Q000706:statistics & numerical data
vernacular_title: Prevalencia de caries y factores asociados en escolares de 12 años de Barcelona.