Bond strengths of chemically dissimilar repaired composite resins.
Expanded use of composite resins has necessitated repair of fractured, discolored, and former restorations. Laboratory investigations have demonstrated that new composite resin can be bonded to cured composite resin of the same chemistry. The surface chemistry of three composite resins of dissimilar matrix formulae were examined by infrared spectroscopy and the tensile bond strengths of heterogeneous repairs and the site of repair failures were determined.
Gregory
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WA
Department of Restorative Dentistry, University of Michigan, School of Dentistry, Ann Arbor.
Pounder
B
B
Bakus
E
E
D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003799:Dental Stress Analysis; D004548:Elasticity; D005583:Fourier Analysis; D008689:Methacrylates / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013314:Stress, Mechanical; D013499:Surface Properties
D003188:Composite Resins; D008689:Methacrylates; D011140:Polyurethanes; C029824:urethane dimethacrylate luting resin; D017438:Bisphenol A-Glycidyl Methacrylate