@article{article160368fe, title = {Effectiveness of the protaper next and reciproc systems in removing root canal filling material with sonic or ultrasonic irrigation: a micro–computed tomographic study}, author = {Martins, Milena Perraro and Duarte, Marco Antonio Hungaro and Cavenago, Bruno Cavalini and Kato, Augusto Shoji and Bueno, Carlos Eduardo da Silveira}, year = {2017}, doi = {10.1016/j.joen.2016.10.040}, journal = {Journal of Endodontics} }