• Pak J Med Sci · Mar 2018

    Effect of intracanal medicaments used in endodontic regeneration on the push-out bond strength of a calcium-phosphate-silicate-based cement to dentin.

    • Elif Aybala Oktay, Seyda Ersahan, and Selcuk Gokyay.
    • Elif Aybala Oktay, Department of Restorative Dentistry, Faculty of Dentistry, Health Sciences University, Ankara, Turkey.
    • Pak J Med Sci. 2018 Mar 1; 34 (2): 310-315.

    ObjectiveTo evaluate the effects of various endodontic regeneration agents on the push-out bond strength of Endosequence Root Repair Material (ERRM) to root-canal dentin.MethodsFifty 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.ResultsThe 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.ConclusionThe use of CH in clinical practice may help improve the adhesion of ERRM to dentin.

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