title: Surface treatment of gold alloys for resin adhesion.
abstract: This in vitro study compared three methods of surface treating gold alloys to improve resin adhesion. The tensile bond strengths and modes of failure between specimen pairs cemented with a chemically adhesive resin were recorded. Heat-treated gold alloy specimens were significantly more resistant to bond failure under tensile loading than were either alumina-blasted or tin-plated gold specimens. There was no statistically significant difference in bond failure between alumina-blasted and tin-plated gold specimens. The surface treatment altered the mode of failure from adhesive and/or adhesive-cohesive for alumina-blasted and tinplated gold specimens to cohesive (within the resin) for heat-treated gold specimens. Three case reports are presented to illustrate clinical applications of heat-treated gold alloys.
authors.affiliation: Department of Conservative Dentistry, Eastman Dental Hospital and Institute, London, England.
authors.forename: A
authors.initials: A
authors.lastname: Eder
authors.forename: J
authors.initials: J
authors.lastname: Wickens
mesh_terms: D000328:Adult; D000537:Aluminum Oxide; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D001840:Dental Bonding / Q000379:methods*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D003801:Dental Veneers; D017220:Dentin-Bonding Agents; D005260:Female; D006047:Gold Alloys; D006358:Hot Temperature; D006801:Humans; D007284:Inlays; D008422:Materials Testing; D008875:Middle Aged; D010710:Phosphates; D019279:Resin Cements; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D014001:Tin
chemical_list: D003188:Composite Resins; D017220:Dentin-Bonding Agents; D006047:Gold Alloys; D010710:Phosphates; D019279:Resin Cements; D017438:Bisphenol A-Glycidyl Methacrylate; D014001:Tin; C052304:Panavia EX; D000537:Aluminum Oxide