Effect of Roughness at inner wall of biomechanically prepared root canal on treatment success.
Good evening. Interesting question. There are some studies showing that final irrigation protocols with extensive use of chelating substances, as EDTA and citric acid, followed by 5% NaOCl result in destruction of collagen fibers which leads to a significant increase in the micro-roughness of the dentinal walls. But I don´t remember any research correlating microscopic observations of the dentinal walls roughness with microleakage or push-out assays. What I do remember is that some papers showed that root canal obturation performed after EDTA + 5% NaOCl had lower apical leakage than obturation performed after a EDTA + Chlorhexidine protocol. I think that with the good quality and flowability of our newer endodontic sealers, as BC-sealer, MTA Fillapex and AH-Plus, a root canal wall with higher roughness could promote an increased contact between dentin and sealer, which could benefit the obturation.
I hope It has helped you.
Thank you sir. I will consider this as an important input to my study.
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