[Frequency distribution of periodontal surgery in a periodontal clinic during the past 9 years].
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010510:Periodontal Diseases / Q000601:surgery*; D013357:Subgingival Curettage; D013524:Surgical Flaps