title: Accuracy of casts produced from alginate and hydrocolloid impression materials.
abstract: It is recognized that alginate impression materials have been used to obtain casts from which castings have been fabricated for a number of years. This study indicates that more dimensionally accurate casts are produced from hydrocolloid compared with casts produced from alginate. The most accurate casts were produced from the polyether impression material.
mesh_terms: D000464:Alginates / Q000592:standards*; D003102:Colloids / Q000592:standards*; D003760:Dental Impression Materials / Q000592:standards*; D003765:Models, Dental; D012826:Silicone Elastomers / Q000592:standards
chemical_list: D000464:Alginates; D003102:Colloids; D003760:Dental Impression Materials; D012826:Silicone Elastomers