[Caries prevalence of a school population].

We have made a cross-sectional study about dental caries in 883 children between 6 and 15 years old, belonging to 3 public schools representing the municipal district of Tetuan (Madrid). The studied variables, that were related with presence/absence of caries were: age, sex, school, social class, number of meals per day, tooth brushing and use of fluor. We have also established the indexes DMFT, dmft, DMFM, together with the affection percentage of each tooth and its graphic representation.