Ghoddusi, Jamileh, Maryam Forghani, Ali Bagherpour, Fatemeh Mahmudabadi, and Majid Sarmad. 2013. “Residual Dentin Thickness of Bifurcated Maxillary Premolars Following Two Post Space Preparation Methods”. Iranian Endodontic Journal 8 (3):94-98. https://doi.org/10.22037/iej.v8i3.3707.