Reduction in dental caries.
D002675:Child, Preschool; D003731:Dental Caries / Q000517:prevention & control*; D004032:Diet; D005459:Fluorides / Q000008:administration & dosage; D006801:Humans; D013754:Tetracyclines / Q000008:administration & dosage
D013754:Tetracyclines; D005459:Fluorides