[The oral hygiene status of residents of large cities and rural area].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003753:Dental Health Surveys; D005260:Female; D006801:Humans; D007723:Korea; D008297:Male; D008875:Middle Aged; D009909:Oral Health; D009911:Oral Hygiene Index; D012423:Rural Health; D012424:Rural Population; D014504:Urban Health; D014505:Urban Population