Four-dimensional observation of remineralization phenomenon with carious lesion using micro CT method and laser irradiation.

利用显微CT方法和激光照射对龋损再矿化现象进行四维观察。

• 批准号: 22791847
• 负责人: KANRI Yoriaki
• 金额: $ 2.5万
• 依托单位: The Nippon Dental 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: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22791847/
• 关键词: 再石灰化; レーザー照射; 病理学; 立体構築; 初期齲蝕; 歯冠修復学; 口腔病理学; 保存修復学; レーザー; 齲蝕

We clarified the caries lesion recovery by the laser irradiation on the tooth surface, using human molars with subsurface demineralization. Purpose of our study is the quality of enamel after a CO2 laser radiation. These observations are done non-destructively by means of micro CT. Sequential quantitative changes was evaluated with the time axis variation of the calcification and the degree widening range of lesion. We used the molars having a white spot caries in smooth surface for experiments. In order to observe the recovery of caries, we performed the combination of CO2 laser irradiation and sodium fluoride application to the white spot. We have observed samples in the 3D image after shooting micro CT. As results, it was a significant difference in demineralization depth in a sample of laser irradiated sample. We suggested the possibility of the tooth surface coating agent and irradiation of the CO2 laser is effective area of subsurface demineralization from this study.

我们利用表面下脱矿的人磨牙，通过激光照射牙齿表面，阐明了龋损的修复。本研究的目的是研究CO2激光照射后牙釉质的质量。这些观察是通过微型CT非破坏性地完成的。用钙化的时间轴变化和病变范围扩大的程度来评价连续的定量变化。我们用磨牙表面光滑的有白色斑点的龋齿进行实验。为了观察龋病的修复情况，我们对白斑进行了CO2激光照射和氟化钠涂抹的联合治疗。拍摄显微CT后，在3D图像中观察样本。结果表明，激光辐照样品的脱矿深度有显著差异。从本研究中我们认为，牙面涂层剂和CO2激光照射的可能性是亚表面脱矿的有效区域。

项目成果

レーザー照射した齲蝕病変―μＣＴ法による再石灰化現象の４次元観察

激光照射龋病灶——μCT法4维观察再矿化现象

• 发表时间: 2014
• 作者: 柬理頼亮