title: Use of zirconia collar to prevent interproximal porcelain fracture: a clinical report.
abstract: Ensuring the longevity of crown restorations is an important objective for the clinician. Veneering porcelain fracture needs to be addressed when considering restoration longevity. This clinical report presents the use of a CAD/CAM-aided design to produce a zirconia substructure with a collar that will achieve the same supportive results as a substructure fabricated by full contour waxing and cut back.
authors.affiliation: Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA. cpogonch@umich.edu
authors.forename: Carl M
authors.initials: CM
authors.lastname: Pogoncheff
authors.forename: Renee E
authors.initials: RE
authors.lastname: Duff
mesh_terms: D017076:Computer-Aided Design; D003442:Crowns; D000044:Dental Abutments; D003776:Dental Porcelain; D017267:Dental Prosthesis Design / Q000295:instrumentation; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D003801:Dental Veneers; D005260:Female; D006801:Humans; D008875:Middle Aged; D019233:Retreatment; D015040:Zirconium
chemical_list: D003776:Dental Porcelain; D015040:Zirconium