title: Changing concepts in periodontal therapy.
mesh_terms: D000543:Alveoloplasty; D003769:Dental Occlusion, Traumatic / Q000150:complications; D005881:Gingiva / Q000637:transplantation; D006801:Humans; D010353:Patient Education as Topic; D010510:Periodontal Diseases / Q000209:etiology / Q000517:prevention & control / Q000601:surgery*; D013357:Subgingival Curettage / Q000379:methods; D013524:Surgical Flaps