Mohammadzadeh Akhlaghi, Nahid, Nahid Rahimifard, Amirabbas Moshari, Mehdi Vatanpour, and Soheila Darmiani. 2013. “The Effect of Size and Taper of Apical Preparation in Reducing Intra-Canal Bacteria: A Quantitative SEM Study”. Iranian Endodontic Journal 9 (1), 61-65. https://doi.org/10.22037/iej.v9i1.4327.