title: [Clinical behavior of NPM dental alloys after several years of intraoral service].
abstract: 179 patients from the University Dental School of Cologne with 437 crowns and bridges cast of base metal alloys (Wiron 77, Wiron 88, Microbond NP2) were evaluated after clinical exposure between two and six years. Symptoms indicating corrosion, allergic or toxic reactions were not found. Cracking of ceramometal veneers occured in 2.8%. The survival rate of the examined crowns and bridges was 95% for those cast of Wiron 88 after four years of service and 97.7% for those of Wiron 77 after six years.
authors.affiliation: Klinik und Poliklinik für Zahn-, Mund und Kieferheilkunde der Universität Köln.
authors.forename: F W
authors.initials: FW
authors.lastname: Pape
authors.forename: R
authors.initials: R
authors.lastname: Voss
mesh_terms: D003343:Corrosion; D003442:Crowns; D003722:Dental Alloys; D003773:Dental Plaque; D003801:Dental Veneers; D003830:Denture, Partial, Fixed; D006801:Humans; D016019:Survival Analysis
chemical_list: D003722:Dental Alloys
vernacular_title: Klinisches Verhalten von NEM-Dentallegierungen nach mehrjähriger Inkorporationszeit.