title: Use of a special matrix system for constructing amalgam and composite cores.
mesh_terms: D003188:Composite Resins; D003442:Crowns; D003723:Dental Amalgam; D003762:Dental Instruments; D003793:Dental Restoration, Permanent / Q000295:instrumentation; D006801:Humans; D008434:Matrix Bands; D011176:Post and Core Technique
chemical_list: D003188:Composite Resins; D003723:Dental Amalgam