Dental caries in children in the city of Wroclaw before the introduction of fluoridation of water supply in 1967. I. Material, methods of stomatological examination, statistical analysis and terminology.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004245:DMF Index; D003731:Dental Caries / Q000453:epidemiology* / Q000517:prevention & control; D003733:Dental Caries Susceptibility; D003753:Dental Health Surveys; D005260:Female; D005457:Fluoridation; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008722:Methods; D011044:Poland; D012494:Sampling Studies; D012737:Sex Factors