title: A technical report on repair of amalgam-dentin complex.
abstract: This clinical report describes a repair protocol for cusp fracture of a failed amalgam-dentin complex. A maxillary right first premolar with an amalgam restoration presented a buccal cusp fracture. Chairside repair has been undertaken by conditioning the existing amalgam restoration with silica coating (30 μm CoJet®-Sand), phosphoric acid etching the beveled enamel surface, priming dentin, and application of a bonding agent on both enamel and dentin. Thereafter, the amalgam was silanized (ESPE®-Sil), and opaque resin was applied and polymerized to mask the amalgam. The fractured buccal cusp was modeled using resin composite (Clearfil Photo Posterior) and photo-polymerized. Finally, the amalgam was refinished and refurbished and the composite was finished and polished.
authors.affiliation: Center for Dental and Oral Medicine, University of Zurich, Zurich, Switzerland. Mutluozcan@hotmail.com
authors.forename: M
authors.initials: M
authors.lastname: Ozcan
authors.forename: E
authors.initials: E
authors.lastname: Salihoğlu-Yener
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000537:Aluminum Oxide / Q000737:chemistry; D001641:Bicuspid / Q000293:injuries*; D003188:Composite Resins / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D001840:Dental Bonding / Q000379:methods; D003738:Dental Cements / Q000737:chemistry; D045662:Dental Etching / Q000379:methods; D003764:Dental Materials / Q000737:chemistry; D003775:Dental Polishing / Q000379:methods; D058250:Dental Restoration Repair; D003793:Dental Restoration, Permanent / Q000379:methods; D003804:Dentin / Q000293:injuries*; D005260:Female; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D010756:Phosphoric Acids / Q000737:chemistry; D012821:Silanes / Q000737:chemistry; D019228:Tooth Crown / Q000293:injuries*; D014082:Tooth Fractures / Q000628:therapy*
chemical_list: D003188:Composite Resins; D003738:Dental Cements; D003764:Dental Materials; D008689:Methacrylates; D010756:Phosphoric Acids; D012821:Silanes; C092420:Clearfil Photo Posterior; C017492:methacryloxypropyltrimethoxysilane; D003723:Dental Amalgam; C030242:phosphoric acid; D000537:Aluminum Oxide