title: Effect of school water fluoridation on dental caries: interim results in Seagrove, NC, after four years.
mesh_terms: D002327:Cariostatic Agents; D002648:Child; D004245:DMF Index; D003731:Dental Caries / Q000517:prevention & control*; D005457:Fluoridation; D005459:Fluorides / Q000008:administration & dosage; D006801:Humans; D009657:North Carolina; D012571:School Dentistry
chemical_list: D002327:Cariostatic Agents; D005459:Fluorides