Moradi, S. et al. 2013. Sealing Ability of Orthograde MTA and CEM Cement in Apically Resected Roots Using Bacterial Leakage Method. Iranian Endodontic Journal. 8, 3 (Jul. 2013), 109–113. DOI:https://doi.org/10.22037/iej.v8i3.3589.