The effect of LED illumination on endodontic biofilms

Abstract

Within endodontics photodynamic therapy (PDT) has been suggested as a disinfectant procedure during root canal treatment. A photoactive dye (photosensitizer), methylene blue or toluidine blue, are activated by a light source, usually lasers or light emitting diodes (LEDs), thereby forming free oxygen radicals supposing to kill the bacteria. New ultraviolet (UV) LEDs may be used without a photosensitizer. A recent study compared the killing efficacy of UV irradiation with an existing PDT on Enterococcus faecalis biofilm. UV irradiation was provided using UV LEDs on the biofilms, in the UVB (296nm) and UVC (266nm) region. The PDT was applied using the commercial product Fotosan®. The UV LEDs were able to eliminate the E. faecalis biofilm while the PDT was only able to make a reduction in the total number of viable cells. UV LEDs may improve disinfection procedures during root canal treatments.
Original languageEnglish
Publication date2016
Publication statusPublished - 2016
EventThe 20th Biennial Scandinavian Endodontic Congress: SkandEndo Copenhagen 2016 - Scandic Hotel, Copenhagen, Denmark
Duration: 25 Aug 201627 Aug 2016
http://www.skandendo.com/

Conference

ConferenceThe 20th Biennial Scandinavian Endodontic Congress
LocationScandic Hotel
Country/TerritoryDenmark
CityCopenhagen
Period25/08/201627/08/2016
Internet address

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