[A survey of dental caries in Guangzhou after 18 years of community water fluoridation].
D000293:Adolescent; D002648:Child; D002681:China; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology / Q000517:prevention & control*; D005457:Fluoridation; D009050:Fluorosis, Dental / Q000453:epidemiology; D006801:Humans