Hannover 2010 – wissenschaftliches Programm
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SYMP: Symposium Plasma in Biology and Medicine
SYMP 1: Plasma in Biology and Medicine (SYMP)
SYMP 1.2: Hauptvortrag
Mittwoch, 10. März 2010, 14:30–15:00, A 001
Cold atmospheric plasma jet for potential dentistry use — •Axel Schindler1, Antje Lehmann1, Stefan Rupf2, and Matthias Hannig2 — 1Leibniz-Institut für Oberflächenmodifizierung e.V., Permoserstr. 15, 04318 Leipzig, Germany — 2Universitätsklinikum des Saarlandes, Klinik für Zahnerhaltung, Parodontologie und Präventive Zahnheilkunde, 66421 Homburg/Saar, Germany
During the last decade non-thermal plasma jets have been emerged as a versatile technology for surface processing like local etching, deposition, surface cleaning and surface activation and are going to step into medicine. We have developed a miniature cold 2,45 GHz microwave driven atmospheric plasma jet. Within the frame of a R&D project, we investigate the feasibility of its future medical and dentistry applications. Besides the main characteristics of the jet source results on dentistry applications will be presented. Plasma-jet treatment reduced microbes on dentin by 3*4 log10 intervals. In situ formed oral biofilms were modified or removed from enamel and titanium surfaces. The plasma jet was found to be able to modify carious dentin. In vitro studies have been performed to modify dentin and enamel surfaces in order to improve the bonding of dental filling composite materials. In an animal experiment thermal side effects to dental pulp as well as oral mucosa were studied. Our results support future application of non-thermal atmospheric plasma jets in dentistry.