Water fluoridation.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004245:DMF Index; D003731:Dental Caries / Q000517:prevention & control; D005457:Fluoridation; D005459:Fluorides / Q000008:administration & dosage; D006801:Humans; D009520:New Zealand
D005459:Fluorides