Micro‐CT evaluation of the removal of root fillings using the ProTaper Universal Retreatment system supplemented by the XP‐Endo Finisher file

Abstract

In the mesiobuccal root canals of extracted mandibular first molars, additional preparation using an XP-Endo Finisher file, after using the PTUR system and F3 ProTaper instruments, enhanced the removal of filling materials from root canals.