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首页> 外文期刊>Lasers in Medical Science >Effects of Er:YAG laser and Nd:YAG laser treatment on the root canal dentin of human teeth: a SEM study
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Effects of Er:YAG laser and Nd:YAG laser treatment on the root canal dentin of human teeth: a SEM study

机译：Er：YAG激光和Nd：YAG激光治疗对人牙根管牙本质的影响：SEM研究

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摘要

The objective of the study was to observe the morphological changes on root canal dentin after Er:YAG laser and Nd:YAG laser treatment. Twenty-one teeth biomechanically prepared were divided into three groups with seven teeth of each. Group A was unlased as a control. In group B, Er:YAG laser and in group C, Nd:YAG laser was applied to the root canal dentin. The roots were split longitudinally and examined using a scanning electron microscopy for the evaluation of debris, smear layer, and recrystallization. There was no statistically significant difference between the groups. This study indicates that laser beam is not effective in removing debris and smear layer.
机译：本研究的目的是观察Er：YAG激光和Nd：YAG激光治疗后根管牙本质的形态变化。通过生物力学制备的21颗牙齿分为三组，每组七颗。将A组作为对照进行释放。在B组中，Er：YAG激光和在C组中，Nd：YAG激光应用于根管牙本质。将根纵向分开并使用扫描电子显微镜检查以评估碎屑，涂片层和重结晶。两组之间无统计学差异。这项研究表明，激光束不能有效去除碎屑和污迹层。

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