Micro–computed tomography versus the cross-sectioning method to evaluate dentin defects induced by different mechanized instrumentation techniques - Stringheta, Carolina Pessoa; Pelegrine, Rina Andréa; Kato, Augusto Shoji; Freire, Laila Gonzales; Iglecias, Elaine Faga; Gavini, Giulio; Bueno, Carlos Eduardo da Silveira (The Journal of Endodontics, 2017)