Akhavan, Hengameh, Anahid Ahmadi, Peyman Mehrvarzfar, and Anahid Ahmadi Birjandi. 2011. “Comparative Study of the Apical Microleakage of Three Root Canal Sealers”. Iranian Endodontic Journal 6 (1):1-5. https://doi.org/10.22037/iej.v6i1.1596.