Title
Stereomicroscopic evaluation of dentinal microcracks after instrumentation with rotary and reciprocating file systems: An in vitro observational study
Authors
Vaishnavi Gupta, Rahul Pandey*, Manoj Kumar Hans, Nirma Bharati, Archita Goel & Palsodkar Aishwarya
Affiliation
Department of Conservative Dentistry and Endodontics, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India; *Corresponding author
Vaishnavi Gupta - E-mail: vaishnavi912522@gmail.com
Rahul Pandey - E-mail: rahul9781@gmail.com
Manoj Kumar Hans - E-mail: hansie51@yahoo.com
Nirma Bharati - E-mail: drnirmabharati0303@gmail.com
Archita Goel - E-mail: architagoel31@gmail.com
Palsodkar Aishwarya - E-mail: aishwaryapalsodkar@gmail.com
Article Type
Research Article
Date
Received October 1, 2025; Revised October 31, 2025; Accepted October 31, 2025, Published October 31, 2025
Abstract
Root canal instrumentation was associated with dentinal microcrack formation in all groups, with no statistically significant differences observed. The single-file reciprocating system showed fewer apical microcracks, while the rotary system demonstrated more apical defects but performed better at the coronal level. Complete fractures were relatively uncommon but occurred more frequently with reciprocating files at the coronal level. These variations suggest that factors beyond instrumentation kinematics, including file design and metallurgy, contribute to microcrack development. Further studies with advanced imaging are needed to validate these findings and assess their clinical implications.
Keywords
Dentinal microcracks, endodontics, reciprocating files, rotary files, root canal preparation, stereomicroscopy
Citation
Gupta et al. Bioinformation 21(10): 3814-3818 (2025)
Edited by
Hiroj Bagde
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.
