title: The evaluation of factors affecting the castability of metal ceramic alloy--investment combinations.
abstract: An evaluation of the castability of metal ceramic alloy-investment combinations using a mesh test and utilizing a factorial design concept has shown that different metal ceramic alloys (gold-based, palladium-based, and nickel-chromium-based alloys) react differently, as far as castability is concerned, to various factors involved in the casting process. These factors were divided into two groups: procedural factors, that included sprue diameter, investing technique, and melting and casting method; and operator factors, which included alloy casting temperature, mould temperature, and heat-soak times. Each of these factors had two or three levels.
authors.affiliation: Department of Restorative Dentistry, School of Clinical Dentistry, University of Sheffield, England.
authors.forename: A
authors.initials: A
authors.lastname: Johnson
authors.forename: R B
authors.initials: RB
authors.lastname: Winstanley
mesh_terms: D002858:Chromium Alloys / Q000737:chemistry; D003734:Dental Casting Investment / Q000737:chemistry*; D003735:Dental Casting Technique / Q000295:instrumentation; D005069:Evaluation Studies as Topic; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D016876:Metal Ceramic Alloys / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry; D013696:Temperature; D013997:Time Factors
chemical_list: D002858:Chromium Alloys; D003734:Dental Casting Investment; D006047:Gold Alloys; D016876:Metal Ceramic Alloys; D010165:Palladium