Push-out Bond Strength of Luting Agents to Fibre-Reinforced Post: an in vitro Study

  • Noor Azlin Yahya
  • J. L. Lui
  • K. W. F. Chong
  • C. M. Lim
  • N. H. Abu Kasim
  • Z. Radzi
Conference paper
Part of the IFMBE Proceedings book series (IFMBE, volume 21)

Abstract

The objective of this study was to investigate the effect of various luting agents on bond strength of fibrereinforced posts to root canal dentine. 40 extracted single rooted sound premolar teeth were root filled, decoronated and randomly divided into four groups. Fibre posts, Aestheti-Plus™ (Bisco,Inc. Schaumburg, IL, USA) were cemented using four luting agents: Group A (control): Elite 100® Zinc phosphate (GC Corp, Japan), Group B: Calibra™ Esthetic Resin Cement (Dentsply Caulk, USA), Group C: RelyX ARC Adhesive Resin (3M ESPE), Group D: RelyX Unicem Aplicap (3M ESPE). Each roots were sliced into 2 discs representing the coronal and middle portions of the root canal giving rise to 20 specimens per group. Bond strength was determined using push-out tests and data were analyzed using SPSS version 14.0. The mean bond strength of Group A to Aestheti-Plus™ post was 7.71 MPa (±2.51) and Group B was 5.69 MPa (±3.23). Group C exhibited the lowest mean bond strength, 4.29 MPa (±3.53) while the highest bond strength was obtained from Group D, 7.98 MPa (±2.61). One way ANOVA showed significant interaction between all groups (p=.001). Post-hoc Bonferroni test revealed that bond strength of Group C was significantly lower compared to Group A (p=.008) and D (p=.004). In conclusion, the mean bond strength of Aestheti-Plus™ post to root canal dentine was highest when cemented with RelyX Unicem followed by Elite 100®, Calibra and RelyX ARC. However, the bond strengths of Calibra and RelyX Unicem were not significantly different from Elite 100®.

Keywords

Fibre post Luting agents Bond strength Push-out test 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Noor Azlin Yahya
    • 1
  • J. L. Lui
    • 1
  • K. W. F. Chong
    • 1
  • C. M. Lim
    • 1
  • N. H. Abu Kasim
    • 1
  • Z. Radzi
    • 1
  1. 1.Faculty of DentistryUniversity MalayaKuala LumpurMalaysia

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