[Our experience with mothers' classes for caries prevention--follow-up studies].
D002675:Child, Preschool; D003731:Dental Caries / Q000517:prevention & control*; D005247:Feeding Behavior; D005260:Female; D005500:Follow-Up Studies; D006267:Health Education, Dental; D006801:Humans; D007223:Infant; D007564:Japan; D008297:Male