A New Modality for the Investigation of the Remineralization Efficacy of a Self-curing Adhesive System

本研究的目的是利用超声设备和光学相干断层扫描（OCT）了解自愈胶粘剂系统的脱矿效果。利用带换能器的脉冲接收机测量纵向超声波的传播时间。在脱矿液中，试样的声速随时间的推移而降低；涂层试样的声速明显高于未涂层试样。从OCT观察来看，酸性侵袭的标本b扫描模式有明显变化，信号强度降低。从这项研究的结果来看，含有PRG填料的涂层材料似乎可以减少牙釉质的脱矿作用。利用超声仪和OCT可以对牙齿结构的脱矿情况进行无损检测。

The purpose of this study was to know demineralization effect of self-healing adhesive system utilizing ultrasonic device and optical coherence tomography (OCT). The propagation time of longitudinal ultrasonic waves was measured by a pulser receiver with a transducer. The sonic velocity decreased over time for specimens stored in demineralising solution; however, coated specimens had a significantly higher sonic velocity than those without coating. From the OCT observations, obvious changes in B-scan mode were observed, and decreases in signal intensities were detected for the specimens with acidic attack. From the results of this study, the coating material containing PRG fillers therefore appeared to reduce the demineralisation of enamel. The condition of demineralization of the tooth structure could be measured non-destructively by using an ultrasonic device and OCT.