不同功率铒钇铝石榴石激光照射后复合材料表面的扫描电子显微镜（SEM）评估
Scanning Electron Microscope (SEM) Evaluation of Composite Surface Irradiated by Different Powers of Er:YAG Laser.
作者信息
Etemadi Ardavan, Shahabi Sima, Chiniforush Nasim, Pordel Edris, Azarbayejani Zahra, Heidari Soolmaz
机构信息
Laser Research Center of Dentistry (LRCD), Dental Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
Dental biomaterials Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
出版信息
J Lasers Med Sci. 2015 Spring;6(2):80-4.
INTRODUCTION
The aim of this study was to evaluate the composite surface treated by different powers of Erbium-Doped Yttrium Aluminum Garnet (Er:YAG) laser in comparison with bur preparation via scanning electron microscope.
METHODS
Fourteen composite resin blocks with 15× 10 × 10 mm dimensions were used in this study. The samples were divided to seven groups as follow: Group 1 (power: 1 W, Energy: 50 mJ); Group 2 (power: 2 W, Energy: 100 mJ); Group 3 (power: 3W, Energy: 150 mJ); Group 4 (power: 4 W, Energy: 200 mJ); Group 5 (power: 5W, Energy: 250 mJ); Group 6 (power: 6 W, Energy: 300 mJ); Group 7: Diamond bur. Then, the samples were prepared for SEM examination.
RESULTS
The surface treated by Er:YAG laser showed irregular and micro porous surface.
CONCLUSION
It seems that composite surface treatment by Er:YAG laser can be an alternative method for composite repair if suitable parameters are used.
引言
本研究旨在通过扫描电子显微镜，评估掺铒钇铝石榴石（Er:YAG）激光不同功率处理后的复合材料表面，并与车针预备的表面进行比较。
方法
本研究使用了14个尺寸为15×10×10毫米的复合树脂块。样本分为以下七组：第1组（功率：1瓦，能量：50毫焦）；第2组（功率：2瓦，能量：100毫焦）；第3组（功率：3瓦，能量：150毫焦）；第4组（功率：4瓦，能量：200毫焦）；第5组（功率：5瓦，能量：250毫焦）；第6组（功率：6瓦，能量：300毫焦）；第7组：金刚石车针。然后，对样本进行扫描电子显微镜检查的准备工作。
结果
经Er:YAG激光处理的表面呈现出不规则和微孔状表面。
结论
如果使用合适的参数，用Er:YAG激光处理复合材料表面似乎可以成为复合材料修复的一种替代方法。
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