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VOLUME 15 , ISSUE 12 ( December, 2024 ) > List of Articles

ORIGINAL RESEARCH

Comparative Evaluation of Dentinal Microcracks Using Single-file Systems with and without a Prior Glide Path: An In Vitro Study

Divya Naik, Amisha Saoji, Sumanthini Margasahayam, Anuradha Patil, Antara Ghosh, Jimish Shah

Keywords : Dentinal microcrack, Glide path, Root canal preparation, Single file system, TruNatomy, XP-endo Shaper

Citation Information : Naik D, Saoji A, Margasahayam S, Patil A, Ghosh A, Shah J. Comparative Evaluation of Dentinal Microcracks Using Single-file Systems with and without a Prior Glide Path: An In Vitro Study. World J Dent 2024; 15 (12):1032-1037.

DOI: 10.5005/jp-journals-10015-2551

License: CC BY-NC 4.0

Published Online: 13-02-2025

Copyright Statement:  Copyright © 2024; The Author(s).


Abstract

Aim: The aim of this study was to compare and evaluate the development of cracks in the dentin of root canals by using different types of file systems for glide path preparation and instrumentation. Materials and methods: About 40 extracted maxillary premolar teeth were selected and randomly divided into four experimental groups, consisting of 10 in each group. Group I: TruNatomy files (26/0.04) without glide path, group II: glide path using the ProGlider (PG) single file (16/0.02) followed by TruNatomy files (26/0.04), group III: XP-endo Shaper (XPES) (30/0.04) without glide path, group IV: glide path using the PG single file (16/0.02) followed by XPES (30/0.04). The sections were individually observed under a stereomicroscope at 40× magnification for any crack, and photographs were taken. The presence of dentinal cracks was evaluated using a scoring system. The incidences of root dentinal defects among various groups were compared using a Chi-squared test. Results: Group II had the highest number of cracks, and the least were present in group IV. All four groups observed the highest microcracks for group I in the coronal section, group II and group IV in the middle section, and group III in the apical section. There was no statistically significant difference seen between the four groups (p > 0.05). Conclusion: Root canal preparation with two different single-file systems can induce dentinal microcracks in root canal walls, with no significant difference in the cracks induced between the groups with and without glide path preparation. Clinical significance: Single-file systems have been observed to lead to a higher occurrence of microcracks compared to full sequence systems to assist clinicians in choosing a single-file system that minimizes the risk of crack formation.

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