| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
To examine how denture insertion influenced the bone metabolism at the residual ridge beneath the denture, Fluorine-18 NaF positron-emission tomography (PET)and computed tomography (CT)images were taken at baseline, 4-6 weeks, and 13 weeks after the denture use. Although CT value at bone beneath denture did not change, PET standardized uptake value increased during the 4-6 weeks after the denture insertion and then decreased despite no clinical complications in the denture-supporting tissues. This result indicates that wearing of a well adapted denture initially increases bone metabolism beneath the denture and then decreased at around 13 weeks after the denture use without bone structural change which clinical X-ray can detect.
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