Purpose: The present study evaluated fiber post bond strength in root dentin using various root canal sealers and resin cements.
Material and Methods: After root canal preparation, teeth were divided into 5 distinct groups [(Sealapex (calcium hydroxide-based); AH Plus (resin-based); Tubli-Seal (eugenol-based); BC Sealer (bioceramic-based) and No Sealer (control)] according to root canal sealer used. After root filling, post space preparations were done. Five main groups were sub-divided into 3 groups (self-etch, etch-and-rinse, and self-adhesive) corresponding to the resin systems applied. After post cementation, 3 slices were obtained from different regions (coronal, middle, apical) for push-out testing. SEM images of specimens were obtained to evaluate for debonding failures. Differences in bond strength were evaluated by ANOVA and Post-hoc Tukey HSD methods.
Results: It was observed that in Tubli-Seal, BC Sealer and Sealapex groups the bond strength was significantly decreased (p < 0.01). No significant difference (p > 0.05) in bond strength values was observed between the AH Plus and control groups. It was also observed that the bond strength values were similar (p >0.05) in different resin cement systems.
Conclusion: Root canal sealers affect bond strength between fiber posts and the root canal dentin, whereas different resin cement systems have no effect on the bond strengths.
Keywords: Bond strength; fiber post; push-out; resin cement; root canal sealerPurpose: The present study evaluated fiber post bond strength in root dentin using various root canal sealers and resin cements.
Material and Methods: After root canal preparation, teeth were divided into 5 distinct groups [(Sealapex (calcium hydroxide-based); AH Plus (resin-based); Tubli-Seal (eugenol-based); BC Sealer (bioceramic-based) and No Sealer (control)] according to root canal sealer used. After root filling, post space preparations were done. Five main groups were sub-divided into 3 groups (self-etch, etch-and-rinse, and self-adhesive) corresponding to the resin systems applied. After post cementation, 3 slices were obtained from different regions (coronal, middle, apical) for push-out testing. SEM images of specimens were obtained to evaluate for debonding failures. Differences in bond strength were evaluated by ANOVA and Post-hoc Tukey HSD methods.
Results: It was observed that in Tubli-Seal, BC Sealer and Sealapex groups the bond strength was significantly decreased (p < 0.01). No significant difference (p > 0.05) in bond strength values was observed between the AH Plus and control groups. It was also observed that the bond strength values were similar (p >0.05) in different resin cement systems.
Conclusion: Root canal sealers affect bond strength between fiber posts and the root canal dentin, whereas different resin cement systems have no effect on the bond strengths.
Keywords: Bond strength; fiber post; push-out; resin cement; root canal sealer.
Primary Language | English |
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Journal Section | Articles |
Authors | |
Publication Date | February 11, 2015 |
Published in Issue | Year 2014 Volume: 24 Issue: 3 |
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