title: Comparison of casting ability of castable ceramic and type III gold.
abstract: This study compared the property of castability of a castable ceramic to an American Dental Association-certified type II casting alloy. A wax pattern was made with a manifold-type structure from which monofilament lines projected approximately 5 to 6 mm. The diameter of the nylon lines ranged from 132 micron to 1270 micron. Each pattern was invested and cast according to the manufacturer's specifications. Each casting was divested and measured for length of casting of the monofilament on a measuring microscope. The castable ceramic and type II gold cast completely at diameters of 1270 micron, and 724 micron, but only type II gold cast completely at the 152 micron and 132 micron diameters.
authors.affiliation: Department of Operative Dentistry, University of California, Los Angeles, School of Dentistry.
authors.forename: R J
authors.initials: RJ
authors.lastname: Hoard
authors.forename: J J
authors.initials: JJ
authors.lastname: Hom
authors.forename: E R
authors.initials: ER
authors.lastname: Hewlett
authors.forename: J F
authors.initials: JF
authors.lastname: Watson
mesh_terms: D002516:Ceramics; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003734:Dental Casting Investment; D003776:Dental Porcelain; D005898:Glass; D006047:Gold Alloys; D008422:Materials Testing; D013499:Surface Properties
chemical_list: D003734:Dental Casting Investment; C047475:Dicor ceramic; D006047:Gold Alloys; D003776:Dental Porcelain