| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In dental care, it is essential to restore the shape and function of the tooth by artificial materials. There always exists interfaces. For examples, dental adhesive is used to connect the dental material and tooth. Information of dentin - adhesive interface is extremely important to obtain good durability and adhesive strength and their understanding. However, conventional methods have some limitations, such as destructive. In this study, we combined two nondestructive analysis methods, X-ray fluorescence method which shows the element distribution of sample and X-ray absorption fine structure method which can recognize the electronic state of specific atoms, the surrounding atoms, the bond coordination number, and the bond distance and developed a method of spatially resolved analysis using micro X-ray beam. We tested it using micro sensor with known structure. As results, we found the cause of sensor deactivation. Then, we tried to apply it to biomaterials.
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