title: Periodontal treatment: does it ever work?
mesh_terms: D003773:Dental Plaque / Q000150:complications / Q000517:prevention & control; D005891:Gingivitis / Q000209:etiology / Q000601:surgery / Q000628:therapy*; D006801:Humans; D010518:Periodontitis / Q000209:etiology / Q000601:surgery / Q000628:therapy*