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The effect of calcium silicate-based sealer on the push-out bond strength of fibre posts
(Wiley, 2012) Ozcan, E.; Capar, I. D.; Cetin, A. R.; Tuncdemir, A. R.; Aydinbelge, H. A.
Background: The aim of this study was to assess the effect of the iRoot SP root canal sealer on the push-out bond strength of fibre posts cemented with self-adhesive resin cement. Methods: Forty-eight extracted maxillary incisors were randomly divided into four groups according to the tested sealer (n = 12): group 1 control (only gutta-percha points, no sealer); group 2 AH Plus Jet (resin-based sealer); group 3 Endofill (zinc oxide-eugenol-based sealer); and group 4 iRoot SP (calcium silicate-based sealer). All root canals were filled with gutta-percha, and groups 24 additionally received one of the sealers. Fibre posts were cemented with the self-adhesive resin cement Clearfil SA Cement. The specimens were sectioned in the coronal, middle and apical regions, producing three slices of 1 mm thickness. The push-out test was performed. All data were submitted to ANOVA and Tukey tests (a = 0.05). Results: No statistically significant differences were found between the control group, AH Plus Jet and iRoot SP (p > 0.05). The Endofill sealer showed significantly lower bond strength compared to the other sealers and the control group (p < 0.05). Conclusions: The calcium silicate-based sealer did not adversely affect the bond strength of the fibre posts cemented with self-adhesive resin cement.