Effects of plasma jet,dielectric barrier discharge,photodynamic therapy and sodium hypochlorite on infected curved root canals |
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| Authors: | Husam Ballout Moritz Hertel Jonas Doehring Eckehard Kostka Stefan Hartwig Sebastian Paris Saskia Preissner |
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| Institution: | 1. Department of Operative and Preventive Dentistry, Charité ‐ Universit?tsmedizin Berlin, Berlin, Germany;2. Department of Oral Medicine, Dental Radiology and Oral Surgery, Charité ‐ Universit?tsmedizin Berlin, Berlin, Germany;3. Department for Oral and Maxillofacial and Facial Plastic Surgery, Johannes Wesling Hospital Minden, University Hospital of the Ruhr University Bochum, Bochum, Germany |
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| Abstract: | The aim of this investigation was to evaluate the effects of 2 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 5 groups—negative control (NC), plasma jet (CAP I), dielectric barrier discharge (CAP II), photodynamic therapy (PDT) and NaOCl + passive ultrasonic irrigation—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 = .015), and those in CAP I were lower than those in CAP II (P = .05). Among all other groups and in the apical parts, no significant differences were found (P > .05).  |
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| Keywords: | cold atmospheric plasma dielectric barrier discharge passive ultrasonic irrigation photodynamic therapy plasma jet |
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