title: Long-term effect of surgical and non-surgical periodontal treatment. A 5-year clinical study.
mesh_terms: D000328:Adult; D003774:Dental Plaque Index; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D010510:Periodontal Diseases / Q000601:surgery* / Q000628:therapy; D010512:Periodontal Index; D014092:Tooth Root / Q000601:surgery