| Project/Area Number |
24592909
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Prosthetic dentistry
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| Research Institution | Niigata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KUROKAWA Koichi 新潟大学, 医歯学系, 准教授 (60215085)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYASHI Takafumi 新潟大学, 医歯学系, 准教授 (80198845)
YAMADA Kazuho 新潟大学, 医歯学総合病院, 特任助教 (20397152)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 歯学 / 骨応力予測 |
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| Outline of Final Research Achievements |
By using a computer program for bone structure analysis, cone-beam CT data of a patient’s edentulous mandibular ridge could be combined with separately obtained micro-CT implant and abutment 3D data, to construct, for the first time, a 3D finite-element model of a patient in which both the trabecular bone structure and the implant shape were accurately reproduced, and a detailed analysis of the stress at the bone-implant interface was performed before the actual implant surgery. This method can be further used in finite element analyses to predict bone stress at potential implant sites, by changing the position, size or number of implants. Adding the knowledge of the future stresses and strains in the peri-implant bone to the factors taken into consideration during the decision making process of the preoperative implant treatment planning is expected to help improve the implant prognosis.
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