title: Relationship between overhanging amalgam restorations and periodontal disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D003723:Dental Amalgam / Q000009:adverse effects*; D003793:Dental Restoration, Permanent / Q000009:adverse effects; D005883:Gingival Crevicular Fluid; D005891:Gingivitis / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D010510:Periodontal Diseases / Q000209:etiology*
chemical_list: D003723:Dental Amalgam