Dentin microhardness changes and smears layer removal following conventional versus alternative irrigation regimens in root canals.

Authors

Shefali Talekar, Adiya Apon, Sarita Vikram Singh, Smitha Reddy, Prachi Kapade, Ritika Pundir, Miral Mehta

Published in

Bioinformation. Volume 22. Issue 6. Pages 3740-3746. Epub Jun 30, 2026.

Abstract

Effective irrigation during root canal treatment is essential for disinfection and smear layer removal, through its effects on dentin microstructure remain insufficiently explored. Therefore, it is of interest to compare the five irrigation protocols-NaOCl/EDTA, NaOCl/ citric acid, CHX/EDTA, MTAD and QMix-on dentin microhardness and smear layer removal. All experimental groups showed significant microhardness reduction compared with control, with NaOCl/EDTA causing the greatest decrease. QMix and MTAD demonstrated superior smear layer removal with moderate effects on dentin hardness, while QMix showed consistent performance across root levels. Thus, data shows the QMix and MTAD provide a balanced alternative to conventional NaOCl/EDTA, maintaining effective smear-layer removal while reducing the negative impact on dentin microhardness.

PMID:
42701738
Bibliographic data and abstract were imported from PubMed on 06 Sep 2026.

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