https://doi.org/10.23805/JO.2025.734
Evaluation of the Efficiency of Different Irrigation Materials to Remove the Bioceramic Sealer in Endodontic Retreatment
Accepted: 8 September 2025
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Authors
Aim
This research aimed to assess the effectiveness of irrigants (phosphoric acid, EDTA, and Triton) in eliminating the bioceramic sealer and smear layer from dentinal tubules during retreatment.
Materials and Methods
Twenty-seven single roots (n=9) were collected. All samples were instrumented using the WaveOne Gold file system (Dentsply Sirona Pty Ltd, Charlotte, NC, USA). Irrigated with 5% NaOCl and 17% EDTA. Subsequently, the obturation used cold and warm techniques with Ceraseal bioceramic sealer (Meta Biomed, Republic of Korea). Pre- and post-endodontic therapy periapical X-rays were done. then incubated at 37°C in 100% humidity for two weeks. Reinstrumentation was performed using the ProTaper Gold system (Dentsply Sirona Pty Ltd, Charlotte, NC, USA). The samples were randomly divided into three groups. Group (A): Phosphoric acid 37% Group (B): EDTA 17% with ultrasonic activation Group (C): TRITON using ultrasonic activation, all samples were longitudinally sectioned using a low-speed saw (Isomet Buehler Co., USA); hereafter, chosen portions were affixed to matrices and gold-sputtered using a sputtering apparatus. The samples were examined with a scanning electron microscope (Jsm-6060LV, Jeol Ltd., Tokyo, Japan) for evaluation.
Results
The results of the bioceramic removal showed that the EDTA was statistically more effective than phosphoric acid and Triton in removing the bioceramic sealer (p<0.05), except for the phosphoric acid with single cone obturation reported better efficiency and Triton with single cone technique in the coronal part only, then reported reduced effectiveness significantly in the middle and apical parts (p>0.05).
Conclusion
This research concludes that EDTA is more successful than phosphoric acid and Triton in eliminating the bioceramic sealer and smear layer from root canals. None of the tested supplementary cleaning materials or techniques completely removed the residual filling material.
How to Cite
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The Journal of Osseointegration has chosen to apply the Creative Commons Attribution NonCommercial 4.0 International License (CC BY-NC 4.0) to all manuscripts to be published.
