Jaber, S. . A., & Abdul-Ameer, Z. . M. (2016). A Comparative Evaluation of the Centering Ability and Canal Transportation of Simulated S-Shaped Canals Instrumented with Different Nickel –Titanium Rotary Systems. Journal of Baghdad College of Dentistry, 28(1), 48-56. https://doi.org/10.12816/0024709