| Project/Area Number |
24592896
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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 | Tohoku University |
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Principal Investigator |
KAWATA Tetsuo 東北大学, 歯学研究科(研究院), 大学院非常勤講師 (80292225)
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| Co-Investigator(Kenkyū-buntansha) |
YODA Nobuhiro 東北大学, 歯学研究科(研究院), 助教 (20451601)
SASAKI Keiichi 東北大学, 歯学研究科(研究院), 教授 (30178644)
OGAWA Toru 東北大学, 歯学研究科(研究院), 准教授 (50372321)
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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 |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 歯科用インプラント / 生体内測定 / 圧電センサ / 生体力学 / インプラント / オーバーデンチャー / 荷重測定 / 圧電式センサ / 三次元荷重 / 咬合 / 上部構造 / カンチレバー |
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| Outline of Final Research Achievements |
The aims of this study are to develop a device for in vivo measurement of three-dimensional (3D) loads in the implants, and to further investigate the implant configuration effects on the load distribution under a fixed partial denture (FPD). A 67-year-old female subject with three implants in mandibular molar area (35, 36, 37). The 3D load-measuring device consisted of piezoelectric transducers and an superstructure. The loads on the implants were recorded during the maximum voluntary clenching (MVC) and chewing a piece of chewing gum (GUM). With the 3I and the Br, the loads exerted on each implant were evenly distributed in both test scenarios. The maximum loads of 335.5 N and 277.6 N were detected on the 36-implant in DCBr and MCBr, respectively, and the tensile load was observed on the 35-implant of DCBr during the GUM. The 36-implant exhibited the largest load in DCBr due to the cantilever effect, with significant margins compared to MCBr and 3I during the GUM (p<0.01).
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