Dental visits: volume and interval since last visit. United States-1969.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001071:Appointments and Schedules; D002648:Child; D002675:Child, Preschool; D003710:Demography; D003753:Dental Health Surveys; D003815:Dentists / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012111:Residence Characteristics; D012494:Sampling Studies; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States