title: [Relationship between caries resistance in permanent teeth of the Wrocław school children and the length of time of drinking-water fluoridation].
abstract: The age at which carious permanent teeth are equally distributed between upper and lower jaw depends upon the caries resistance of the individual. This age was called the "characteristic age" of the population. It was found that water fluoridation in Wrocław (1967) postponed this characteristic age by two years. In females, this age is earlier than in males. This method is useful in the appredication of the caries susceptibility of a population. The effect of water fluoridation upon this susceptibility was shown. Caries resistance was found to be higher in males.
mesh_terms: D000293:Adolescent; D002648:Child; D004245:DMF Index; D003731:Dental Caries / Q000517:prevention & control*; D003733:Dental Caries Susceptibility; D005260:Female; D005457:Fluoridation; D006801:Humans; D008297:Male; D011044:Poland; D012571:School Dentistry
vernacular_title: Relation entre la résistance des enfants des écoles de Wrocław à l'éqard de le carie des dents permanentes.