Falakaloglu, SedaSilva, Emmanuel Joao Nogueira LealYeniceri Ozata, MerveGundogar, Mustafa2024-04-242024-04-2420231329-19471747-4477https://doi.org/10.1111/aej.12649https://hdl.handle.net/11468/17484This study aimed to evaluate the shaping ability of XP-endo Shaper, TruNatomy and EdgeFile X3 during the preparation of resin-printed mandibular molar mesial root canals. Thirty-three resin-based mandibular mesial roots with two canals, obtained from extracted tooth cone-beam computed tomography (CBCT) image and printed on a three-dimensional (3D) printer, were divided into three experimental groups according to the different nickel-titanium (NiTi) systems used for root canal preparation. The specimens were scanned using CBCT imaging before and after root canal preparation. Then images were registered using a dedicated software and changes in the canal area, volume, untouched canal surface and the maximum and minimum dentine wall wear were calculated. The XP-endo Shaper instruments showed improved shaping ability with lower untouched root canal surface and better preservation of root canal anatomy during the preparation of resin-printed mandibular mesial root canals compared with TruNatomy and EdgeFile X3 systems.eninfo:eu-repo/semantics/closedAccess3-D PrintingEdgefile X3Printed Resin TeethTrunatomyXp-Endo ShaperArticle492256261WOS:0008186824000012-s2.0-851330351143577061010.1111/aej.12649Q2Q4