Title
Geometric response of curved mandibular molars to NiTi instrumentation
Authors
Juveria Masreen, Vijetha Badami*, Bhavana Badaka, Shaik Mohammad Waseem, Alla Sriharsha & V Yoshna Sree
Affiliation
Department of Conservative Dentistry and Endodontics, MNR Dental College and Hospital, Sangareddy, Telanagana, India; *Corresponding author
Juveria Masreen - E-mail: drjuveriamasreen@gmail.com
Vijetha Badami - E-mail: mnrendodocuments@gmail.com
Bhavana Badaka - E-mail: dr.bhavana.badaka@gmail.com
Shaik Mohammad Waseem - E-mail: waseem1muh@gmail.com
Alla Sriharsha - E-mail: sriharshareddy333@gmail.com
V. Yoshna Sree - E-mail: yoshnasree17@gmail.com
Article Type
Research Article
Date
Received March 1, 2026; Revised March 31, 2026; Accepted March 31, 2026, Published March 31, 2026
Abstract
Preserving root canal geometry in curved canals remains a major challenge during mechanized NiTi instrumentation. Therefore, it is of interest to evaluate the shaping performance of HyFlex EDM, TruNatomy and XP-Endo Rise in curved mesiobuccal canals using high-resolution micro-computed tomography. Thirty extracted mandibular first molars with 15°-35° curvature were allocated into three groups (n = 10) and canal transportation and centering ability were assessed at 3, 6 and 9 mm from the apex. XP-Endo Rise showed minimal buccolingual but increased mesiodistal transportation, whereas TruNatomy demonstrated superior centering with minimal canal deviation and HyFlex EDM exhibited balanced shaping behavior. All systems maintained root canal geometry within clinically acceptable limits.
Keywords
Nickel-Titanium rotary systems, micro-computed tomography (micro- CT), root canal transportation, centering ability, hyflex EDM, trunatomy, XP endo rise, mandibular first molars.
Citation
Masreen et al. Bioinformation 22(3): 1881-1886 (2026)
Edited by
Rashmi Laddha
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
