title: Fabrication of a maxillary posterior fixed partial denture with a type 4 gold alloy and a dual-polymerizing indirect composite.
abstract: The aim of the present study was to design and fabricate a maxillary posterior fixed partial denture (FPD) made of a type 4 gold alloy and an indirect composite. Unlike the conventional framework design of a resin veneered restoration, cut-back was extended approximately 1/4 to 1/3 width in the occlusal table of the buccal cusp. Multiple retentive beads 150-200 mum in diameter were placed on the metal surface to be veneered. The gold alloy was cast in a cristobalite mold using a centrifugal casting machine. The cut surface with the retentive beads was air-abraded with alumina, and a priming agent (Alloy Primer) that contained triazine dithione monomer (VTD) was applied. A tooth-colored veneer was then fabricated with a highly loaded light- and heat-cured composite material (Estenia). This design and procedure can be applied as a standardized laboratory technique for fabrication of maxillary posterior restorations and FPDs.
authors.affiliation: Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan. matsumura@dent.nihon-u.ac.jp
authors.forename: Hideo
authors.initials: H
authors.lastname: Matsumura
authors.forename: Shuichi
authors.initials: S
authors.lastname: Mori
authors.forename: Naomi
authors.initials: N
authors.lastname: Tanoue
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003735:Dental Casting Technique / Q000295:instrumentation; D045662:Dental Etching / Q000379:methods; D003775:Dental Polishing; D003801:Dental Veneers; D003779:Denture Design; D003830:Denture, Partial, Fixed; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D008437:Maxilla; D008689:Methacrylates / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties; D013871:Thiones / Q000737:chemistry
chemical_list: C521707:Alloy Primer; D003188:Composite Resins; C521708:Estenia Opaque Primer; D006047:Gold Alloys; D008689:Methacrylates; D011140:Polyurethanes; D013871:Thiones; C091839:urethanetrimethacrylate; D012822:Silicon Dioxide; D000537:Aluminum Oxide