激光治疗对间接复合树脂表面形态的影响：扫描电子显微镜（SEM）评估
Effect of Laser Treatment on Surface Morphology of Indirect Composite Resin: Scanning Electron Microscope (SEM) Evaluation.
作者信息
Mirzaie Mansore, Garshasbzadeh Nazanin Zeinab, Yassini Esmaeil, Shahabi Sima, Chiniforush Nasim
机构信息
Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medial science.
出版信息
J Lasers Med Sci. 2013 Spring;4(2):92-5.
INTRODUCTION
The aim of this study was to evaluate and compare the Scanning electron microscope (SEM) of indirect composite conditioned by Erbium-Doped Yttrium Aluminum Garnet (Er:YAG) laser, Neodymium-Doped Yttrium Aluminium Garnet (Nd:YAG) laser and Carbon Dioxide (CO2) laser.
METHODS
18 indirect composite blocks (GC Gradia DA2, Japan) with 15 × 10 × 10 mm dimensions were made. The bonding surface of these blocks were polished, then the samples were divided into six groups as follow: Er:YAG laser with output power of 0.5 W and frequency of 10 Hz, Nd:YAG laser with output power of 0.25, 0.5 W and frequency of 10 Hz, CO2 laser with output power of 0.5 W and frequency of 10 Hz and 5 Hz, and no treatment. Then, the surfaces were evaluated by SEM.
RESULTS
Irregularities were observed in Er:YAG laser samples compared to control group that produced suitable retention for adhesion of cements. Nd:YAG and CO2 lasers showed melting areas.
CONCLUSION
Among different lasers, Er:YAG laser can be used as an alternative technique for surface treatment of indirect composites.
引言
本研究的目的是评估和比较掺铒钇铝石榴石（Er:YAG）激光、掺钕钇铝石榴石（Nd:YAG）激光和二氧化碳（CO2）激光处理后的间接复合树脂的扫描电子显微镜（SEM）图像。
方法
制作18个尺寸为15×10×10mm的间接复合树脂块（日本GC Gradia DA2）。将这些块体的粘结表面抛光，然后将样品分为六组如下：输出功率为0.5W、频率为10Hz的Er:YAG激光组，输出功率为0.25W、0.5W、频率为10Hz的Nd:YAG激光组，输出功率为0.5W、频率为10Hz和5Hz的CO2激光组，以及未处理组。然后，通过SEM对表面进行评估。
结果
与对照组相比，Er:YAG激光处理的样品表面观察到不规则现象，这为粘结剂的粘结提供了合适的固位力。Nd:YAG激光和CO2激光处理的样品表面出现熔化区域。
结论
在不同的激光中，Er:YAG激光可作为间接复合树脂表面处理的替代技术。
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