The value of scaling, root planing and subgingival curettage.
D003777:Dental Prophylaxis; D012534:Dental Scaling; D005069:Evaluation Studies as Topic; D006801:Humans; D010510:Periodontal Diseases / Q000628:therapy; D013357:Subgingival Curettage; D014092:Tooth Root / Q000601:surgery*