Nd:YAG laser irradiation in root canal disinfection.
Nd:YAG laser irradiation in root canal disinfection.
复制标题
Nd:YAG激光照射在根管消毒中的应用。
DOI：
10.1111/j.1600-9657.1995.tb00492.x
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
M. Trope
中科院分区：
文献类型：
--
作者：
J. Moshonov;D. Orstavik;S. Yamauchi;M. Pettiette;M. Trope
本研究的目的是评估Nd：YAG激光照射消毒根管系统的效果。75颗牙齿被均匀地仪器和消毒，他们的根管感染60分钟，过夜培养的粪肠球菌在胰蛋白酶大豆肉汤。将牙齿分为6组：1-未感染对照; 2-感染对照; 3-感染，激光治疗; 4-感染，激光模拟（仅染料）; 5-感染，激光模拟（染料和空气-水喷雾）; 6-感染，NaOCl治疗（参考组）。治疗后，将根管干燥并去除牙本质刮屑用于治疗后培养。对在各种处理中存活的细菌进行定量分析，并比较每组的细菌计数。扫描电镜分析纵向分裂的牙齿，以说明处理的玷污层和表面细菌的影响。Nd：YAG激光照射组（第3组）能显著减少根管细菌数量，而NaOCl冲洗组（第6组）能有效消毒根管。
The purpose of this study was to assess the efficacy of Nd:YAG laser irradiation in disinfecting the root canal system. Seventy-five teeth were uniformly instrumented and sterilized, and their root canals were infected for 60 min with an overnight culture of Enterococcus faecalis in Tryptic Soy Broth. The teeth were divided into 6 groups: 1--non-infected controls; 2--infected controls; 3--infected, laser treated; 4--infected, laser dummy (dye only); 5--infected, laser dummy (dye and air-water spray); 6--infected, NaOCl-treated (reference group). After treatment, the root canals were dried and dentinal shavings removed for a post-treatment culture. Quantitative analysis of bacteria surviving the various treatments were performed and the bacterial counts for each group were compared. SEM analysis of teeth split longitudinally was used to illustrate the effect of treatment on the smear layer and on surface bacteria. Nd:YAG laser irradiation (group 3) significantly reduced the number of bacteria while NaOCl irrigation (group 6) effectively disinfected the canals.