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

ISSN Druckformat: 1947-5764
ISSN Online: 1947-5772

Plasma Medicine

DOI: 10.1615/PlasmaMed.2018027473
pages 39-48

Transient Spark for Bacterial Cleaning of Dental Microcavities

Loïc Ledernez
Albert-Ludwigs-University of Freiburg
R. Bruch
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Albert-Ludwigs-University of Freiburg, Germany
M. Altenburger
Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center, University of Freiburg; Faculty of Medicine, University of Freiburg, Germany
M. Bergmann
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Albert-Ludwigs-University of Freiburg, Germany
G. Urban
Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Albert-Ludwigs-University of Freiburg, Germany


We present a method to disinfect microcavities such as tooth root canals. With the aim of being introduced inside of the root canal, parameters are chosen to produce reactive oxygen species that inactivate bacteria and cause little to no temperature increase within the canal. We demonstrate the device's effects on bacteria with the use of Escherichia coli spread on agar in a Petri dish.


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