School fluoridation studies in Elk Lake, Pennsylvania, and Pike County, Kentucky--results after eight years.
D000293:Adolescent; D002648:Child; D004245:DMF Index; D003731:Dental Caries / Q000517:prevention & control*; D005457:Fluoridation; D009050:Fluorosis, Dental / Q000139:chemically induced; D005500:Follow-Up Studies; D006801:Humans; D007629:Kentucky; D008722:Methods; D010414:Pennsylvania; D012572:School Health Services; D014881:Water Supply