Bond strength of glass-ionomer cement and composite resin combinations.
The tensile bond strength to dentin was measured for three glass-ionomer cement and composite resin combinations: two light-curing glass-ionomer cements (Vitrebond and XR-Ionomer) and one traditional glass-ionomer cement (Ketac-Bond), two adhesive systems (Scotchbond, and XR-Bonding System), and a corresponding composite resin. The bond strength of this "sandwich" was also compared with that of the same cements used in bulk. Vitrebond showed a significantly higher bond strength in bulk than did the other two cements. Of the sandwiches, the XR-Ionomer and XR-Bond combination showed a bond strength significantly higher than that of the Vitrebond and Scotchbond or Ketac-Bond and Scotchbond combination. The fracture of the bond was mainly adhesive for Vitrebond, cohesive for XR-Ionomer when used in bulk and adhesive-cohesive when used in a sandwich, and cohesive for Ketac-Bond.
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NIOM, Scandinavian Institute of Dental Materials, Haslum, Norway.
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D000180:Acrylic Resins; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003793:Dental Restoration, Permanent / Q000379:methods*; D003804:Dentin; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates; D011140:Polyurethanes; D019279:Resin Cements; D013718:Tensile Strength
D000180:Acrylic Resins; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; D008689:Methacrylates; D011140:Polyurethanes; D019279:Resin Cements; C061499:Ketac-Bond; C065770:Herculite XR; C067788:scotchbond 2; C067790:Vitrabond; C070604:XR Bond; D017438:Bisphenol A-Glycidyl Methacrylate; C033930:Silar (3M)