Ruiz Piñón, ManuelGancedo-Gancedo, TaniaCastelo Baz, PabloLorenzo Pouso, Alejandro IsmaelMartín Cruces, JoséMartín Biedma, Benjamín2022-08-242022-08-242021Aust Endod J 2021; 47: 672–678. https://doi.org/10.1111/aej.125381329-1947http://hdl.handle.net/10347/29135The aim of this study was to present a new technique for plastic carrier removal in retreatment situations. The gutta-percha technique that uses plastic carrier obturators is one of the most commonly used; however, removing this core is tedious and time-consuming. Two clinical cases were performed by an expert in the field of endodontics, to expose this technique, in which a conical ultrasonic tip with an active point and a Hëdstrom hand file allowed the removal of the plastic carrier quickly and effectively. The use of magnification is indispensable for a predictable success with this methodeng©The authors, 2021. Published by Australian Society of Endodontology Inc (Wiley). This work is under a CC Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0)http://creativecommons.org/licenses/by-nc-nd/4.0/Carrier-based obturationEndodontic failureEndodontic retreatmentGutta-perchaHëdstrom filejournal article10.1111/aej.125381747-4477open access