Ex vivo evaluation of antibacterial effects of Nd:YAG and diode lasers in root canals.
Gerek M, Asci S, Yaylali DIBiotechnol Biotechnol Equip. 2010;24(3):2031-2034.
Background:
The presence of necrotic tissue and bacteria may cause the persistence of infection in root canals. The aim of this study is to compare the antibacterial efficacy of standard irrigating procedures with 2.5% NaOCl and 17% EDTA using the laser techniques of Nd:YAG and Diode lasers on 176 extracted single-rooted teeth.
Strains of Enterococcus faecalis and Candida albicans were used. After the tests were performed, the number of colony-forming units per milliliter (CFU/ml) was counted and the results were statistically analyzed.
According to the data evaluated, although EDTA, Nd: YAG, and Diode lasers were effective as a bactericidal agent in contaminated root canals, NaOCl had a significantly higher antibacterial effect. The Nd:YAG and Diode lasers showed more antimicrobial effect than EDTA in the E. faecalis group while the Nd:YAG and Diode lasers and EDTA showed the same level of antimicrobial action in the C. albicans group.
Ex vivo evaluation of antibacterial effects of Nd:YAG and diode lasers in root canals.
