Berkiten M, Berkiten R, Okar I
Department of Endodontics, Marmara University, Faculty of Dentistry, Istanbul, Turkey.
J Endod. 2000 May;26(5):268-70. doi: 10.1097/00004770-200005000-00003.
The antibacterial effects of the Nd:YAG laser on contaminated root canals and dentinal tubules were observed as the aim of this study. The samples were inoculated with Streptococcus sanguis (NCTC 7853) and Prevotella intermedia (NCTC 93336), and the effects of Nd:YAG laser were tested on these teeth. The specimens were lased with 1.8 W and 2.4 W Nd:YAG laser for 30 s, and the presence of bacteria in tubules was observed under light microscopy. The 1.8 W laser sterilized the tubules in 86.3% of sections inoculated with S. sanguis, whereas 2.4 W laser sterilized in 98.5% of the sections. Both laser powers sterilized all samples inoculated with P. intermedia. The scanning electron microscopic observations supported the light microscopic findings.
本研究旨在观察钕钇铝石榴石（Nd:YAG）激光对受污染根管和牙本质小管的抗菌作用。样本接种血链球菌（NCTC 7853）和中间普氏菌（NCTC 93336），并测试Nd:YAG激光对这些牙齿的作用。用1.8W和2.4W的Nd:YAG激光对标本照射30秒，然后在光学显微镜下观察小管内细菌的存在情况。1.8W激光使接种血链球菌的切片中86.3%的小管达到无菌状态，而2.4W激光使98.5%的切片达到无菌状态。两种激光功率均使所有接种中间普氏菌的样本达到无菌状态。扫描电子显微镜观察结果支持了光学显微镜的发现。
