[A longitudinal study on the dental caries prevalence in young children].
D000367:Age Factors; D002675:Child, Preschool; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan; D008137:Longitudinal Studies; D008297:Male; D014094:Tooth, Deciduous