title: Amalgam matrix technic--preventive periodontics.
mesh_terms: D003723:Dental Amalgam; D003762:Dental Instruments; D003793:Dental Restoration, Permanent / Q000379:methods*; D006801:Humans; D008434:Matrix Bands; D010510:Periodontal Diseases / Q000517:prevention & control
chemical_list: D003723:Dental Amalgam