A survey of the periodontal conditions of dental students in India and Norway.
D000293:Adolescent; D000328:Adult; D001114:Areca; D003753:Dental Health Surveys; D005260:Female; D006801:Humans; D007194:India; D008297:Male; D009664:Norway; D010510:Periodontal Diseases / Q000453:epidemiology*; D010512:Periodontal Index; D010946:Plants, Medicinal; D012907:Smoking; D013223:Statistics as Topic; D013335:Students, Dental