title: The Bond Strength of Resin Bonded Bridge Retainers to Abutments of Differing Proportions of Enamel and Composite.
abstract: Four groups of specimens were constructed using bovine enamel and composite resin. After a period of ageing, the specimens were roughened and acid etched before they were cemented to air abraded base metal alloy beams with a universal resin cement. After further ageing, tensile peel testing was carried out using a Universal Testing Machine. The force required to produce failure increased as the amount of composite resin on the bonding surface of the abutment increased. This difference reached statistical significance (p < 0.5) when the abutments contained > 50% composite. The mode of failure was mixed on the majority of retainers. Within the limitations of the study, findings suggest that RBB retainers can be cemented to abutments restored with composite resin without a reduction in bond strength.
authors.forename: Kathryn
authors.initials: K
authors.lastname: Durey
authors.forename: Brian
authors.initials: B
authors.lastname: Nattress
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000818:Animals; D002417:Cattle; D002484:Cementation / Q000379:methods; D002858:Chromium Alloys / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D000044:Dental Abutments; D001840:Dental Bonding; D003743:Dental Enamel / Q000648:ultrastructure*; D045662:Dental Etching / Q000379:methods; D003764:Dental Materials / Q000737:chemistry*; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis / Q000295:instrumentation; D003781:Denture Retention / Q000295:instrumentation*; D016379:Denture, Partial, Fixed, Resin-Bonded; D008422:Materials Testing; D019279:Resin Cements / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013718:Tensile Strength; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D002858:Chromium Alloys; D003188:Composite Resins; D003764:Dental Materials; C451600:OptiBond Solo Plus; C438843:Panavia-Fluoro; D019279:Resin Cements; D014867:Water