title: Crowns and extra-coronal restorations: materials selection.
abstract: Materials selection is the second in the series on crowns and other extra-coronal restorations. Some of us are less than inspired by dental materials science. Nevertheless, many of the things that concern us clinically with crowns and their alternatives are based on material properties. We worry about the strength of the restoration, how well it fits and its aesthetics. We also worry about wear, occlusal control and biocompatibility. Not least of our concerns are dental laboratory charges, which inevitably have to be passed on to the patient.
authors.affiliation: Department of Restorative Dentistry, The Dental School, Newcastle upon Tyne. r.w.wassell@ncl.ac.uk
authors.forename: R W
authors.initials: RW
authors.lastname: Wassell
authors.forename: A W G
authors.initials: AW
authors.lastname: Walls
authors.forename: J G
authors.initials: JG
authors.lastname: Steele
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D002858:Chromium Alloys / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D017076:Computer-Aided Design; D003442:Crowns; D003722:Dental Alloys / Q000737:chemistry; D003764:Dental Materials / Q000737:chemistry; D003766:Dental Occlusion; D003776:Dental Porcelain / Q000737:chemistry; D017267:Dental Prosthesis Design; D019554:Dental Restoration Wear; D004955:Esthetics, Dental; D005898:Glass / Q000737:chemistry; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D007754:Laboratories, Dental; D016876:Metal Ceramic Alloys / Q000737:chemistry; D010165:Palladium / Q000737:chemistry; D011176:Post and Core Technique; D013314:Stress, Mechanical; D013499:Surface Properties; D019231:Tooth Preparation, Prosthodontic
chemical_list: D001672:Biocompatible Materials; D002858:Chromium Alloys; D003188:Composite Resins; D003722:Dental Alloys; D003764:Dental Materials; D006047:Gold Alloys; D016876:Metal Ceramic Alloys; D003776:Dental Porcelain; D010165:Palladium