Uzunoglu, E. et al. 2015. Retreatability of Root Canals Obturated Using Gutta-Percha with Bioceramic, MTA and Resin-Based Sealers. Iranian Endodontic Journal. 10, 2 (Mar. 2015), 93–98. DOI:https://doi.org/10.22037/iej.v10i2.6902.