| Project/Area Number |
26462917
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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 |
Prosthodontics/ Dental materials science and
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
関野 徹 大阪大学, 産業科学研究所, 教授 (20226658)
若林 一道 大阪大学, 歯学部附属病院, 助教 (50432547)
矢谷 博文 大阪大学, 歯学研究科, 教授 (80174530)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | ジルコニア / CAD/CAM / シリカ / アルミナ / 透光性 / 低温劣化 / クラウン / 破壊荷重 / 加速劣化試験 / 曲げ強度 / 加速試験 |
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| Outline of Final Research Achievements |
The purpose of this study was to examine the translucency and low-temperature degradation of silica-doped experimental Y-TZP (Yttria-stabilized tetragonal zirconia polycrystal) containing almost no alumina.
The experimental Y-TZP samples were sintered at different temperatures. The samples of commercially available translucent Y-TZP was used as controls. In addition, the specimens were also subjected to an accelerated aging test. The results showed that the experimental Y-TZP exhibited almost the same level of translucency as commercial translucent Y-TZP. It was concluded that the silica-doped Y-TZP will develop translucency and resistance to degradation.
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