Canal-Centering and Apical Transportation Ability of Similar Cross-Section NiTi Instruments Working with Different Kinematics—Micro-CT-based In Vitro Analysis
Mohammed S. Shareef, Smitha Reddy, Aisha Habeeb, Thakur Veerandar Singh, Tamanna Firdaus, Priyendu Bhattacharjee- General Pharmacology, Toxicology and Pharmaceutics
- General Biochemistry, Genetics and Molecular Biology
- Bioengineering
- General Pharmacology, Toxicology and Pharmaceutics
- General Biochemistry, Genetics and Molecular Biology
- Bioengineering
ABSTRACT
Objective:
Evaluating the canal-centering and apical transportation ability of endodontic file systems working with different kinematics but of similar cross section.
Materials and Methods:
Sixty human maxillary first molar mesiobuccal (MB) roots were assigned to three experimental groups based on instrumentation techniques: Reciproc Blue (RB), Mtwo (M2), and OneShape (OS). Pre- and post-instrumentation micro-computed tomographic analysis was performed. Centering ability and apical transportation were analyzed at 3 mm, 6 mm, and 9 mm short of the apex. Statistical analysis was conducted using Mann–Whitney U test and Kruskal–Wallis test.
Results:
OS showed better canal-centering ability than RB and M2 at 3 mm, 6 mm, and 9 mm. No significant difference among the tested groups was observed during the assessment of apical transportation (
Conclusion:
The systems evaluated safely prepared curved MB canals with minimal canal transportation. OS showed superior canal-centering ability compared to the other two groups.