Mohammadzade Akhlaghi, Nahid, Zohreh Khalilak, Ladan Baradaran Mohajeri, Mahshid Sheikholeslami, and Saeed Saedi. 2008. “Comparison of Canal Preparation Pattern of K3 and ProTaper Rotary Files in Curved Resin Blocks”. Iranian Endodontic Journal 3 (2):11-16. https://doi.org/10.22037/iej.v3i2.402.