title: Customization of milled zirconia copings for all-ceramic crowns: a clinical report.
abstract: Generically milled zirconia copings for all-ceramic crowns may not provide optimal thickness and form for the coping or the porcelain veneer. This article describes the customization of milled zirconia copings to provide even and controlled porcelain thickness with the aim of decreasing cohesive porcelain fracture and other failures. A full-contour waxing and cut back in conjunction with a dual-scan technique was used to ensure adequate coping thickness, adequate, even porcelain thickness, and butt joints at the porcelain-to-coping junctions.
authors.affiliation: University of Southern California, School of Dentistry, Los Angles, CA, USA. BMarchack@aol.com
authors.forename: Baldwin W
authors.initials: BW
authors.lastname: Marchack
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Futatsuki
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Marchack
authors.forename: Shane N
authors.initials: SN
authors.lastname: White
mesh_terms: D000368:Aged; D017076:Computer-Aided Design; D003442:Crowns; D000044:Dental Abutments; D003764:Dental Materials / Q000737:chemistry; D003776:Dental Porcelain / Q000737:chemistry; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D013499:Surface Properties; D019231:Tooth Preparation, Prosthodontic; D015040:Zirconium / Q000737:chemistry
chemical_list: D003764:Dental Materials; D003776:Dental Porcelain; D015040:Zirconium; C028541:zirconium oxide