Effect of school water fluoridation on dental caries: final results in Elk Lake, Pa, after 12 years.
D000293:Adolescent; D002648:Child; D004245:DMF Index; D003731:Dental Caries / Q000517:prevention & control*; D005457:Fluoridation; D006801:Humans; D010414:Pennsylvania; D012189:Retrospective Studies; D014078:Tooth Eruption