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Root canal irrigation by using Er : YAG laser Root canal irrigation by using Er : YAG laser Root canal irrigation by using Er : YAG laser Root canal irrigation by using Er : YAG laser Root canal irrigation by using Er : YAG laser

使用 Er : YAG 激光进行根管冲洗使用 Er : YAG 激光进行根管冲洗使用 Er : YAG 激光进行根管冲洗使用 Er : YAG 激光进行根管冲洗使用 Er : YAG 激光进行根管冲洗

基本信息

批准号：
22791839
负责人：
MATSUMOTO Himeka
金额：
$ 2.58万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (B)
财政年份：
2010
资助国家：
日本
起止时间：
2010 至 2011
项目状态：
已结题

项目摘要

The aim of this study was to clarify the working mechanism of intracanal irrigation bypursedd lasers. Using a high speed camera, vapor and cavitation bubbles induced by Er : YAG laser were visualized in a water environment and in a glass root canal model. In addition, the motion of glass-bead tracers was captured in a root canal model. The vapor bubbles by a coneshaped tip and flat one were different in shape and lifetime. In the root canal model, the vapor bubble grew up and down along the canal wall, followed by the formation and collapse of many smaller cavitation bubbles repeatedly. The analysis using tracers showed rapid agitation caused by laser irradiation. These results suggest that the mechanism of Er : YAG laser in the root canal irrigation might be attributed to high speed fluid motion due to bubble formation and collapse. Er : YAG laser with the coneshaped tip may be promising for intracanal irrigation.

本研究旨在阐明激光根管冲洗的作用机理。使用高速摄像机，蒸汽和空化气泡由Er：YAG激光诱导的水环境中，并在玻璃根管模型可视化。此外，在根管模型中捕获了玻璃珠示踪剂的运动。锥形喷嘴和扁平喷嘴产生的汽泡形状和寿命不同。在根管模型中，汽泡沿根管壁沿着上下生长，随后反复出现许多更小的空化泡的形成和溃灭。使用示踪剂的分析表明激光照射引起的快速搅拌。提示Er：YAG激光根管冲洗的机理可能是由于气泡的形成和破裂引起的高速流体运动。Er：YAG激光锥形头端用于根管冲洗是可行的。