Bond strengths of three chemical adhesive cements adhered to a nickel-chromium alloy for direct bonded retainers.
Sandblasted surfaces of a beryllium-free, nickel-chromium alloy were bonded with one of three chemical adhesives. After either immersion in water for up to 6 months or thermal cycling between 5 degrees and 60 degrees C for 500 cycles, the bonded specimens were tested for both shear and tensile strength. The highest values of tensile and shear bond strengths were found with Panavia Ex material, and these values showed no significant changes after thermal cycling. For ABC cement and for Super-Bond C & B material, the strength of the bond was significantly improved with thermal cycling. However, immersion in water for 6 months caused a significant decrease in the strength of the bond of specimens adhered with ABC cement.
Department of Conservative Dental Surgery, Guy's Hospital Dental School, University of London, England.
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Atta
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Smith
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Brown
D000179:Acrylates; D000704:Analysis of Variance; D001896:Boron Compounds; D002858:Chromium Alloys; D001840:Dental Bonding / Q000379:methods; D003738:Dental Cements; D003799:Dental Stress Analysis / Q000295:instrumentation; D006358:Hot Temperature; D008689:Methacrylates; D008768:Methylmethacrylates; D008854:Microscopy, Electron; D010710:Phosphates; D011140:Polyurethanes; D019279:Resin Cements; D013718:Tensile Strength
D000179:Acrylates; D001896:Boron Compounds; D002858:Chromium Alloys; D003738:Dental Cements; D008689:Methacrylates; D008768:Methylmethacrylates; D010710:Phosphates; D011140:Polyurethanes; D019279:Resin Cements; C029824:urethane dimethacrylate luting resin; C052304:Panavia EX; C049495:Super-bond