Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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BONDING STRENGTH OF GLASS-IOMOMER CEMENT AND COMPOSITE RESIN COMBINATION

Glass ionomer cement의 상아질 결합력에 관한 연구

  • Um, Chung-Moon (Department of Conservative Dentistry, College of Dentistry, Seoul National University) ;
  • Oilo, Gudbrand (Physical/Chemical Division, NIOM, Scandinavian Instritute of Dental Materials)
  • 엄정문 (서울대학교 치과대학 보존학교실) ;
  • Published : 1994.09.10
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Abstract

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. Vitredbond showed a significantly higher bond strength in bulk than did the other two cements. Of the sandwiches, the XR - Iomomer 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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