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Plasma Medicine
SJR: 0.278 SNIP: 0.183 CiteScore™: 0.57

ISSN Print: 1947-5764
ISSN Online: 1947-5772

Plasma Medicine

DOI: 10.1615/PlasmaMed.2019032357
pages 121-128

Effect of Transient Spark Disinfection on Various Endodontics-Relevant Bacteria

Loïc A. Ledernez
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, University of Freiburg, Freiburg, Germany
F. Engesser
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, University of Freiburg, Freiburg, Germany
M. J. Altenburger
Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
G. A. Urban
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, University of Freiburg, Freiburg, Germany
M. E. Bergmann
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, University of Freiburg, Freiburg, Germany

ABSTRACT

The in vitro efficacy of transient spark disinfection was examined on different types of bacteria that are relevant in endodontics, in particular Enterococcus faecalis. A device was constructed so that it could be inserted down to the apex of prepared root canals and could be applied in conventional, regenerative, and reparative endodontics. Starting with a bacterial load of 0.2 mL of undiluted 109-bacteria/mL spread on a Petri dish, 3-min treatment led to a 106-CFU/cm2 reduction in bacterial load over a surface area relevant to root canal treatment.

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