Effect of preceding enlargement steps on real-time torque generation
Originally at sciencedirect.com
Summary & scoring by The Bell Brief (Dr. Jennifer Bell) using the Drill-Down Protocol (Drill-Down Score) — not the original publisher.
Why it matters for dental
Endodontists and restorative dentists who perform root-canal therapy may need to adjust glide-path and finishing-file sequences, because the study shows that the number and size of preceding enlargement steps alters the torque generated during shaping and the mechanical properties of the final rotary NiTi instrument.
Key points
- Peer-reviewed study published in Journal of Endodontics on 12 October 2026 evaluated torque generation and post-use mechanical properties of rotary nickel-titanium finishing instruments.
- Results indicate that different preceding enlargement sequences produce measurable differences in torque and residual mechanical properties of the finishing file.
- Endodontists and practice owners who rely on single-file or minimal-sequence protocols may need to re-evaluate torque limits and file-reuse policies.
- Specialists performing high-volume endodontics can use the findings to optimize instrument selection and reduce risk of file separation.
Who should care
Read the original on Journal of Endodontics
Full reporting and any paywall content live on sciencedirect.com. We summarize and score; we do not republish.
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