title: Marginal leakage of amalgam alloys with high content of copper: a laboratory study.
mesh_terms: D003300:Copper; D003722:Dental Alloys / Q000592:standards*; D003723:Dental Amalgam / Q000592:standards*
chemical_list: D003722:Dental Alloys; D003300:Copper; D003723:Dental Amalgam