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Updated: Jul 4, 2025
Scanning Electron Microscopic Evaluation of Surface Defects of Remover Retreatment File After Single and Multiple Uses
Published on: October 11, 2024
A cone-beam computed tomographic analysis of total dentin removed, canal transportation, and canal-centering ability
Arya Navnath S Khandeparkar1, Ida de Noronha de Ataide1, Marina Fernandes1
1Department of Conservative Dentistry and Endodontics, Goa Dental College and Hospital, Bambolim, Goa, India.
Aims:
The aim of this study was to evaluate the shaping ability following instrumentation with XP-endo Shaper (XPS), TruNatomy (TRN), and HyFlex CM (HCM) file system.
Subjects And Methods:
Fifty-four mesiobuccal canals of mandibular molars were selected and allocated into three groups randomly: XPS, TRN system, and HCM file system. Pre- and postinstrumentation scans were taken using a cone-beam computed tomography scanner to determine the amount of root dentin removed, mesiodistal and buccolingual transportation, and canal-centering ratio at 2, 5, and 8 mm from the root end.
Statistical Analysis Used:
Data were statistically analyzed using Kruskal-Wallis test and the significance level was set at P = 0.05.
Results:
TRN file system removed the least amount of root dentin. XPS showed statistically higher M-D canal transportation at 5 mm level from the apex.
Conclusions:
TRN file system showed better dentin preservation as compared to XPS and HCM. XPS showed the highest canal transportation at 5 mm. All three file systems performed similarly in terms of canal-centering ability.
