Oral hygiene and periodontal disease.
D005882:Gingival Diseases; D006306:Health Surveys; D006801:Humans; D007198:Indians, North American; D009910:Oral Hygiene; D010510:Periodontal Diseases; D014070:Tooth; D014481:United States
HEALTH SURVEYS; INDIANS, NORTH AMERICAN; PERIODONTAL DISEASE; TEETH