摘要
为探讨Nd：YAG激光对牙本质矿物含量的影响，应用扫描电镜和能谱仪定点测量50个上前牙标本的根管壁（激光照射区和正常对比区）的钙、磷含量。结果表明，照射区牙本质钙／磷（Ca／P）比值高于对比区，当激光能量达15w以上时变化更为显著（P＜0．05，P＜0．01）。提示Nd：YAG激光能提高牙本质的钙化程度。
The purpose of the study in vitro was to evaluate the effect of denim mineral amountfollowing Nd: YAG laser irradiation. The levels of calcium and phosphorous of canal wall in lasertreatment and normal locations of that are determined by SEM-EDAX. The results showed that Ca/Pratio of the groups using 15W^30W laser were clearly higher than those of normal denim(PMO. 05 andP＜0.01). These indicated that the extent of calcify in denim can be increased by Nd: YAG laser.
出处
《临床口腔医学杂志》
1998年第3期131-132,共2页
Journal of Clinical Stomatology
基金
国家重点科技项目!96-B11-04-03
江苏省科委社会发展计划资助!BS95018
江苏省教委青年基金!95049
