PERIODONTAL AND ORAL HYGIENE STATUS OF TEEN-AGERS IN OPTIMUM AND FLUORIDE-DEFICIENT CITIES.
D000293:Adolescent; D002947:Cities; D005459:Fluorides; D005882:Gingival Diseases; D006801:Humans; D007087:Illinois; D009909:Oral Health; D009910:Oral Hygiene; D010510:Periodontal Diseases; D010710:Phosphates; D013223:Statistics as Topic
D010710:Phosphates; C012980:fluorophosphate; D005459:Fluorides
ADOLESCENCE; FLUORIDES; ILLINOIS; ORAL HEALTH; PERIODONTAL DISEASES; STATISTICS