[Periodontic studies on 14-15-year-old schoolchildren].
D000293:Adolescent; D000367:Age Factors; D005260:Female; D005860:Germany, West; D006801:Humans; D008297:Male; D010512:Periodontal Index; D012571:School Dentistry
Parodontologische Beobachtungen an 14 bis 15 jährigen Schülern