Al-Obaidi, A. M. and Motea, Y. H. 2016. A Comparison of the Effectiveness of Reciprocating System with Continuous Rotary Systems in Non-Surgical Endodontic Retreatment (An In vitro study). Journal of Baghdad College of Dentistry. 28, 1 (Mar. 2016), 57–62. DOI:https://doi.org/10.12816/0024710.