title: The Equi-Spansion technique for casting without metal rings.
mesh_terms: D003722:Dental Alloys; D003734:Dental Casting Investment; D003735:Dental Casting Technique / Q000295:instrumentation; D003779:Denture Design / Q000379:methods*; D006801:Humans
chemical_list: D003722:Dental Alloys; D003734:Dental Casting Investment