| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
We developed surface modification technology for implants by using commercially pure Titanium (cp Ti). The study contributes to shortening the time required for adhesion between bone and surfaces of implants. In this study, a nanosecond-pulsed laser was used to modify the surfaces of cp Ti and their bioactivities were then evaluated. From the results, an oxide layer with high oxygen concentration and various kinds of texture were produced. Moreover, the OH groups were created on the laser-treated surface. These effects result in the formation of hydroxyapatite on surfaces immersed in 1.5-times concentrated simulated body fluid. This indicates that laser treatment improves the bioactivity of cp Ti, which is a critical property for osseointegrated implants.
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