Comparative evaluation of dentinal microcrack formation using ProTaper universal, twisted file adaptive, and blue NiTi endoarch systems: A micro-CT study
Introduction: Instrumentation may induce dentinal microcracks—precursors to vertical root fracture. Aim: To compare microcrack formation using ProTaper Universal, Twisted File Adaptive, and Blue NiTi EndoArch via micro-CT. Methods: 45 extracted mandibular molars decoronated, randomized to three instrument systems. Pre- and post-instrumentation micro-CT at 14 μm; blinded evaluation of coronal, middle and apical thirds. Results: Rotary instruments produced more microcracks than the adaptive motion system. Conclusion: Adaptive motion systems may reduce iatrogenic dentinal microcracks compared to conventional rotary systems.
Authors
- Sangeeta Talwar (ORCID: https://orcid.org/0000-0001-6805-4695)
- Ruchika Roongta Nawal (ORCID: https://orcid.org/0000-0002-7264-8506)
- Darshana Ramesh Bodkhe
- Sudha Yadav
Institutions
- Maulana Azad Institute of Dental Sciences (IN)
Publication Details
- Journal
- Indian Journal of Dental Research
- Published
- 2026-03-01
- DOI
- https://doi.org/10.4103/ijdr_202637s1_abs_52
- Primary Topic
- Facial Trauma and Fracture Management
- Type
- article
- Field-Weighted Citation Impact
- 0.00