| Budget Amount *help |
¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2004: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 2003: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
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| Research Abstract |
Difference of implant-bone adhesion was influence to concentration of occlusal stress and bone remodeling. In HA-implant, occlusal stress and bone remodeling was mainly performed on alveolar bone which was adhesion to neck part of implant. On the other hand, in Ti-implant, concentration of occlusal stress and bone remodeling was done on mainly cancellous bone around implant bottom. But, difference of a little amount of bone resorption was shown between two kinds of implant under experimental conditions. Therefore, the difference of implant-bone adhesion was suggested a little influence to implant successful clinical course.
The most large amount of bone resorption was found under the condition of excessive occlusal stress plus peri-implantitis, and the next large amount bone resorption was found in peri-implantitis. Excessive occlusal stress on implant showed the smallest alveolar bone resorption in experimental group. In control group, the two kinds of implant showed little amount of bone resorption.
Peri-implantitis was more influence on bone resorption and bone remodeling than excessive occlusal stress of two kind of implant Therefore, a good control of peri-implantitis is the most important factor for good clinical course of dental implant.
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