Evaluation of operator experience and nickel-titanium retreatment file systems in curved root canals.

Eur Oral Res · 2026 · PMC13187803 · PMID 42170029

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did not reach statistical significanceno p-value reported

Additionally, both the FANTA AF Retreatment Files and the ProTaper Universal Retreatment system demonstrated a lower incidence of ledge formation when used by the resident; however, this difference did not reach statistical significance. Conclusion The endodontist completed the procedures faster than the endodontic resident.

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