Journal of Biophotonics
Journal of Biophotonics
5 years ago

Effects of plasma jet, dielectric barrier discharge, photodynamic therapy and sodium hypochlorite on infected curved root canals

Stefan Hartwig, Jonas Doehring, Husam Ballout, Eckehard Kostka, Saskia Preissner, Sebastian Paris, Moritz Hertel
The aim of this investigation was to evaluate the effects of two different cold atmospheric plasma (CAP) sources, photodynamic therapy and sodium hypochlorite (NaOCl), on infected root canals. Therefore, 50 standardized curved human root canals were infected with Enterococcus faecalis and assigned to five groups – negative control (NC), plasma jet (CAP I), dielectric barrier discharge (CAP II), photodynamic therapy (PDT), and NaOCl + PUI – for 30 s. Colony forming units (CFUs) were determined. NaOCl was significantly more effective at reducing CFUs than all test groups (p < .0001, (Mann-Whitney U test)) in both parts of the root canal. CFUs in PDT were significantly lower than those in CAP II (p = 0.015), and those in CAP I were lower than those in CAP II (p = 0.05). Among all other groups and in the apical parts, no significant differences were found (p > 0.05).

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/jbio.201700186

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