T. A. MuKhlif and A.-K. J. Al-Azzawi, “The effect of curvature angle and rotational speed on the cyclic fatigue of three types of rotary instrument (In vitro): comparative study”, J Bagh Coll Dent, vol. 25, no. 1, pp. 38–42, Mar. 2013, Accessed: May 02, 2024. [Online]. Available: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/136