Abstract
In this work, a new geometry Helium Cold Atmospheric-pressure Plasma (CAP) jet operated using bi-polar pulsed power source is reported. Its effectiveness in disinfecting E. faecalis infected root canals is evaluated and compared to that of 5.25% NaOCl and QMix at various time intervals. Before treatment, the jet has been characterized electrically and accordingly optimized for different operating parameters. Kruskal–Wallis Rank Sum and Wilcoxon tests are performed to analyse the difference among all the treatment groups. The CAP jet has shown maximum antibacterial efficiency at 10 min of exposure. CAP Jet, NaOCl, and QMix treatment achieved maximum percentage reductions of 90.8%, 99.99% and 96%, respectively. However, NaOCl and QMix have several disadvantages. It is predicted that the controlled exposure of CAP jet can be used as root canal disinfectant and best optimized further as a non-intrusive method.
Published Version
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