Khoshbin, Elham, Zakyeh Donyavi, Erfan Abbasi Atibeh, Ghodratollah Roshanaei, and Faranak Amani. 2018. “The Effect of Canal Preparation With Four Different Rotary Systems on Formation of Dentinal Cracks: An In Vitro Evaluation”. Iranian Endodontic Journal 13 (2):163-68. https://doi.org/10.22037/iej.v13i2.16416.