El Abbassi, S., Chala , S. ., Sakout , M. ., & Abdallaoui , F. . (2022). Evaluation of the Respect of the Root Canal Trajectory by Rotary Niti Instruments (Protaper®Universal): A Retrospective Radiographic Study. Integrative Journal of Medical Sciences, 9. https://doi.org/10.15342/ijms.2022.637