Yammine, S. D., Jabbour, E., Nahas, P., & Majzoub, Z. (2017). Foramen Changes following Over Instrumentation of Curved Canals with Three Engine-Driven Instruments: An In Vitro Study. Iranian Endodontic Journal, 12(4), 454–461. https://doi.org/10.22037/iej.v12i4.16268