Effect of intracanal medicaments used in endodontic regeneration on the push-out bond strength of a calciumphosphate-silicate-based cement to dentin
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CitationOktay, E. A., Erşahan, Ş. ve Gökyay, S. (2018). Effect of intracanal medicaments used in endodontic regeneration on the push-out bond strength of a calciumphosphate-silicate-based cement to dentin. Pakistan Journal of Medical Sciences, 34(2), 310-315. https://doi.org/10.12669/pjms.342.14630
Objective: To evaluate the effects of various endodontic regeneration agents on the push-out bond strength of Endosequence Root Repair Material (ERRM) to root-canal dentin. Methods: Fifty single-rooted human teeth were selected and instrumented to obtain a standard internal diameter of 1.5 mm. Specimens were randomly divided into four experimental groups and treated with an intracanal medicament [calcium hydroxide (CH), double antibiotic paste (DAP), triple antibiotic paste (TAP), TAP with amoxicillin (mTAP)] and a non-treated control group. Medicaments were removed after three weeks, and ERRM was applied to all specimens. The coronal portion of each root was then sliced into 2-mm-thick parallel transverse sections (2 slices per tooth, n=20 slices per group), and a push-out test was used to measure the bond strength of ERRM to dentin. Data were analyzed using Bonferroni-corrected Mann-Whitney tests, with the level of significance set at p<0.05. Results: The push-out bond strength of the CH group was significantly higher than that of the TAP, DAP and mTAP groups (p<0.005). Furthermore, the bond strength of the control group was higher than the bond strength of both the DAP and mTAP groups. Conclusion: The use of CH in clinical practice may help improve the adhesion of ERRM to dentin.