临床口腔医学杂志2016，Vol.32Issue(9)：519-522,4.DOI:10.3969/j.issn.1003-1634.2016.09.003
Nd：YAG激光照射对牙本质表面微观特征影响的实验研究
The experimental study on the effect of dentine micro-characteristic features after irradiating with Nd:YAG laser
李雪英 1孔婷婷 2刘莉 1董少杰 3李晓红 1牛林1
作者信息
- 1. 西安交通大学附属口腔医院 陕西 西安 710004
- 2. 烟台市口腔医院牙体牙髓科 山东 烟台 264000
- 3. 烟台市口腔医院正畸科 山东 烟台 264000
- 折叠
摘要
Abstract
Objective:To evaluate the dentine micro-characteristic change after irradiating with Nd:YAG laser. Methods:The dentin hypersensitivity model was setted up by Acid etching. And then the samples were irradiated by Nd:YAG laser under different parameters. The morphological alterations and the calcium-phosphorus ( Ca/P) ratio in different depth of the dentin were examined with SEM combined with energy dispersive X-ray microanalysis. Results:At the longitu⁃dinal section of samples,the dentinal tubules were blocked and with smaller diameter of tubules near the dentine surface at group B compared with the control group. Dentinal tubules were blocked to a certain depth and no damage at group C and D. The tubules were blocked from surface to the 25μm deepth and had many micro-cracks around the tubules at group E. Compared with the control group,the Ca/P ratios at 5μm and 20μm deepth were a little different but there was no statistically significant(P>0. 05). Conclusion:The suitable energy parameter of Nd:YAG laser seem been 30 mj,10 Hz and 50 mj , 5Hz during treating dentin hypersensitivity.关键词
牙本质敏感症/Nd:YAG激光/牙本质小管/钙磷比值Key words
Dentin hypersensitivity/Nd:YAG laser/Dentin tubules/Calcium-phosphorus ratio分类
医药卫生引用本文复制引用
李雪英,孔婷婷,刘莉,董少杰,李晓红,牛林..Nd：YAG激光照射对牙本质表面微观特征影响的实验研究[J].临床口腔医学杂志,2016,32(9):519-522,4.
