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首页> 外文期刊>Journal of Lasers in Medical Sciences >Scanning Electron Microscope Comparative Evaluation of Feldspathic Porcelain Surfaces under Irradiation by Different Powers of Neodymium-Doped Yttrium Aluminium Garnet (Nd:YAG) Laser
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Scanning Electron Microscope Comparative Evaluation of Feldspathic Porcelain Surfaces under Irradiation by Different Powers of Neodymium-Doped Yttrium Aluminium Garnet (Nd:YAG) Laser

机译：掺钕钇铝石榴石（Nd：YAG）激光辐照下长石质瓷表面的扫描电镜比较

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Introduction: Recent use of lasers for porcelain surface treatment for adhesion of brackets to restorations has not only showed some promising results, but is also accompanied with less undesirable effects among other advantages. The purpose of this study is the comparative electron microscope evaluation of feldspathic porcelain surfaces under irradiation by Neodymium-Doped Yttrium Aluminium Garnet (Nd:YAG) with different powers (0.75, 1.5 and 2W) via the acid etching with hydrofluoric acid (HF) technique. Methods: The glazed porcelain samples were obtained by duplicating labial surfaces of maxillary central incisor teeth. The specimens were randomly treated by 4 different methods. Group1 was etched with hydrofluoric acid 9.6%. Samples in group 2 to 4 were also irradiated by Nd:YAG laser with different powers: 0.75, 1.5 and 2W. Then the samples were prepared for evaluation by scanning electron microscope (SEM). Results: Etching quality from a porosity point of view was similar for group2 and HF group. Laser with power of 0.75W has little potential to create mechanical porosity. Conclusion: In regard of the results of this study, it is possible to benefit from Nd:YAG laser with appropriate parameters for surface conditioning.
机译：简介：最近使用激光对瓷器进行表面处理以使托槽附着在修复体上不仅显示出令人鼓舞的结果，而且伴随着其他优点，产生了较少的不良影响。这项研究的目的是通过氢氟酸（HF）酸蚀技术对掺钕钕钇铝石榴石（Nd：YAG）不同功率（0.75、1.5和2W）辐照下的长石瓷表面进行比较电子显微镜评估。 。方法：通过复制上颌中切牙的唇面获得釉面瓷样品。标本采用4种不同方法随机处理。第一组用9.6％的氢氟酸蚀刻。还使用Nd：YAG激光以不同的功率（0.75、1.5和2W）照射第2-4组的样品。然后准备样品以通过扫描电子显微镜（SEM）进行评估。结果：从孔隙率的角度来看，第2组和HF组的蚀刻质量相似。功率为0.75W的激光几乎没有产生机械孔隙的潜力。结论：根据这项研究的结果，可以从具有适当参数的Nd：YAG激光中进行表面调节。

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