2004 Fiscal Year Final Research Report Summary
Difference of Stress distribution and Bone remodeling under Occlusal force on two kinds of Dental Implant.
| Project/Area Number |
13672131
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Surgical dentistry
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| Research Institution | Asahi University |
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Principal Investigator |
KANEMATSU Nobutake Asahi University, School of Dentistry, Professor, 歯学部, 教授 (40076097)
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| Project Period (FY) |
2001 – 2004
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| Keywords | Dental implant / Titanium(Ti) / Hydroxyapatite(HA) / Bone remodeling / Implant-bone adhesion / Peri-impiantitis / Excessive occlusal stress / Occlusal force |
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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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