International trends in oral health.
D002648:Child; D002675:Child, Preschool; D004245:DMF Index; D003729:Dental Care; D003731:Dental Caries / Q000453:epidemiology; D003815:Dentists / Q000600:supply & distribution; D003906:Developing Countries; D006801:Humans; D009909:Oral Health; D010510:Periodontal Diseases / Q000175:diagnosis; D011320:Primary Health Care; D013674:Technology, Dental