title: Using reversible hydrocolloid impression materials.
mesh_terms: D000362:Agar; D003102:Colloids; D003735:Dental Casting Technique; D003760:Dental Impression Materials; D003761:Dental Impression Technique / Q000295:instrumentation; D005881:Gingiva / Q000033:anatomy & histology; D006801:Humans
chemical_list: D003102:Colloids; D003760:Dental Impression Materials; D000362:Agar