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- Title
The bactericidal effect of a Genius® Nd:YAG laser.
- Authors
Kranendonk AA; van der Reijden WA; van Winkelhoff AJ; van der Weijden GA
- Abstract
Purpose: To evaluate the 'in vitro' bactericidal effect of the Nd:YAG laser (Genius, Mølsgaard Dental, Copenhagen, Denmark) on six periodontal pathogens. Methods: Suspensions of six different periodontal pathogens ( Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, Fusobacterium nucleatum and Parvimonas micra) were prepared in small Eppendorff tubes, and exposed to a Nd:YAG laser for five different periods of time. Laser settings used: Power 6 Watt (on a scale of 1-12 W), Frequency 50 Hz, Pulse duration 250 [mu]s. After exposure to the laser, aliquots of the suspensions were spread on blood agar plates for bacterial counting. Results: After 5 s of laser exposure, there was a decrease in total colony forming units for all six selected microorganisms. After 15, 30 and 45 s, no viable bacterial cells could be retrieved. Conclusion: In this 'in vitro' model, 15 s of Nd:YAG laser use was found to be effective for total killing of the six tested periodontal pathogens.
- Publication
International Journal of Dental Hygiene, 2010, Vol 8, Issue 1, p63
- ISSN
1601-5029
- Publication type
Journal Article
- DOI
10.1111/j.1601-5037.2009.00375.x