| dc.description.abstract | Various factors might affect interfacial bonding between fiber post and the dentin. The aim of this in vitro study was to evaluate effects of MTA-based sealer on bond strength of a fiber post cemented with self-adhesive resin cement and compare the results with eugenol-based sealers(Dorifill) and epoxy-based sealers(AH Plus). Materials and Methods: Seventy-two human uniradicular maxillary incisors teeth were decoronated and prepared using the step-back technique and randomly devided into four groups(n=18 for each group):group 1, control group (gutta-percha points only, no sealer); group 2, AH Plus sealer; group 3, Dorifill sealer; and group 4, MTA fillapex sealer. The roots were obturated with gutta-percha using the cold lateral compaction technique. Fiber posts were cemented into the prepared post spaces with self-adhesive resin cement. All teeth were sectioned transversally into 2-mm-thick discs. These discs were then subjected to the push-out. The data were then analyzed by using one-way ANOVA and post hoc Tukey's test at = 0.05 . Results: Mean ( SD) bond strength in root canals: Gcontrol(8.811.57), GDorifill(4.020.93), GAH Plus(6.211.16), GMTA fillapex(6.841.50). One-way analysis of variance (ANOVA) revealed that sealers have significant effects on bond strength (p<0.05). Conclusion: The results of this study showed that the type of canal sealer affect the bond strength of a fiber post cemented with resin cement | |
