title: A new all-ceramic crown. A dense-sintered, high-purity alumina coping with porcelain.
abstract: A method of manufacturing an all-ceramic crown composed of a coping of dense-sintered, high-purity alumina with dental porcelain is described. This method takes the sintering shrinkage of alumina into consideration and makes it possible to produce individual dental copings in dense-sintered, high-purity alumina, which is a biocompatible implant material. The alumina used has density, grain size, and flexural strength within the limits of the values required in ISO 6474-1981, 'Implants for surgery, ceramic materials based on alumina'.
authors.affiliation: Department of Prosthetic Dentistry, University of Umeå, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Andersson
authors.forename: A
authors.initials: A
authors.lastname: Odén
mesh_terms: D000134:Acid Etching, Dental; D000537:Aluminum Oxide / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003442:Crowns; D003775:Dental Polishing; D003776:Dental Porcelain / Q000737:chemistry; D003799:Dental Stress Analysis; D003779:Denture Design; D004548:Elasticity; D008855:Microscopy, Electron, Scanning; D013314:Stress, Mechanical; D013499:Surface Properties; D013674:Technology, Dental
chemical_list: D003776:Dental Porcelain; D000537:Aluminum Oxide