Gutknecht N, Nuebler-Moritz M, Burghardt S F, Lampert F
Department of Conservative Dentistry, Periodontology and Preventive Dentistry, University of Aachen, Germany.
J Clin Laser Med Surg. 1997;15(2):75-8. doi: 10.1089/clm.1997.15.75.
The aim of the present study was to determine the bactericidal effect of a holmium:yttrium-aluminum-garnet (Ho:YAG) laser on root canals in vitro. The efficiency of different laser settings was compared. The in vitro examinations revealed extensive bacterial reduction in extracted, endodontically prepared teeth that had been incubated with Streptococcus faecalis with the most favorable results at a setting of 5 Hz and 2 W. In average, 99.98% of the bacteria injected in the root canal could be eliminated. Considering this bactericidal effect, the application of the Ho:YAG laser in root canal treatment appears to be very efficient.
钇铝石榴石（Ho:YAG）激光对根管的杀菌效果。比较了不同激光设置的效率。体外检查显示，在与粪肠球菌一起孵育的已进行牙髓预备的离体牙中，细菌大量减少，在5Hz和2W的设置下效果最佳。平均而言，注入根管的细菌中有99.98%可以被清除。考虑到这种杀菌效果，Ho:YAG激光在根管治疗中的应用似乎非常有效。
