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- Title
Bactericidal activity of erbium, chromium:yttrium-scandium-gallium-garnet laser in root canals.
- Authors
Arnabat, Josep; Escribano, Cesar; Fenosa, Anna; Vinuesa, Teresa; Gay-Escoda, Cosme; Berini, Leonardo; Viñas, Miguel; Viñas, Miguel
- Abstract
The aim of this study was to investigate the effectiveness of the erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser by measuring its bactericidal effect inside root canals experimentally colonized with Enterococcus faecalis. We also determined the optimal conditions for the Er,Cr:YSGG laser to achieve the maximal bactericidal effect. An Er,Cr:YSGG Waterlase laser was used, and its antimicrobial effect was compared with that of sodium hypochlorite (NaOCl) at various concentrations as widely used in clinics. This laser emits photons at a wavelength of 2.78 microm. It is a pulsed laser operating at 20 Hz (20 pulses/s). Significant differences between measurements in the different groups (P < 0.05) were observed, depending on time and power used. The use of NaOCl 5% was the most effective procedure, with NaOCl 0.5% being the least effective; however, laser treatment was as effective as NaOCl 5% when applied at 2 W for 60 s.
- Subjects
LASERS in dentistry; DENTAL pulp cavities; ENTEROCOCCUS faecalis; ENDODONTICS; ANTI-infective agents; SODIUM hypochlorite
- Publication
Lasers in Medical Science, 2010, Vol 25, Issue 6, p805
- ISSN
0268-8921
- Publication type
journal article
- DOI
10.1007/s10103-009-0693-0