Shear Bond Strength of Conventional Glass Ionomer Cements Bound to Mineral Trioxide Aggregate


Yesilyurt C. , Yildirim T. , TAŞDEMİR T. , Kusgoz A.

JOURNAL OF ENDODONTICS, vol.35, no.10, pp.1381-1383, 2009 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 10
  • Publication Date: 2009
  • Doi Number: 10.1016/j.joen.2009.06.003
  • Title of Journal : JOURNAL OF ENDODONTICS
  • Page Numbers: pp.1381-1383
  • Keywords: Adhesion, glass-ionomer cement, mineral trioxide aggregate, PULP-CAPPING MATERIAL, DENTIN SIALOPROTEIN, REPAIR MATERIAL, HARD-TISSUE, TEETH, MTA

Abstract

Introduction: This study measured the shear bond strength of conventional glass ionomer cements (GICs; Ketac Molar Easymix and Fuji IX) bonded to white mineral trioxide aggregate (WMTA) that had been allowed to set for 2 different time intervals. Methods: Forty-eight WMTA specimens were prepared; half were stored for 45 minutes, and the remaining 24 specimens were stored for 72 hours at 37 degrees C and 100% humidity. Then each group was divided into 2 subgroups of 12 specimens, and each GIC was layered on each of the 2 WMTA preparations. The GIC-WMTA shear bond strengths were measured and were compared by using one-way analysis of variance. Results: The shear bond strengths with the 45-minute and 72-hour WMTAs were 8.85 and 9.16 MPa, respectively, for Ketac Molar Easymix and 9.34 and 9.96 MPa, respectively, for Fuji IX. The GIC-WMTA bond strength was not different between GIC applications to WMTA that had set for 45 minutes versus 72 hours (P > .05). Conclusions: GICs might be used over MTA after the MTA has set for 45 minutes to allow single-visit procedures. (J Endod 2009,35:1381-1383)