| Project/Area Number |
08672260
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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 |
補綴理工系歯学
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| Research Institution | KANAGAWA DENTAL COLLEGE |
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Principal Investigator |
UMEMOTO Kozo KANAGAWA DENTAL COLLEGE,DEPARTMENT OF DENTISTRY,ASSISTANT PROFESSOR, 歯学部, 助教授 (40097275)
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| Co-Investigator(Kenkyū-buntansha) |
KURATA Shigeaki KANAGAWA DENTAL COLLEGE,DEPARTMENT OF DENTISTRY,LECTURER, 歯学部, 講師 (20104333)
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1996: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | Low Temperature / Pressure / Toughness / Ceramics / Whisker / 加圧成形 / 靱性 / 加圧 / 成形 / インレー / クラウン |
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| Research Abstract |
The heating temperature of a mixture of magnesia and ammonium dihydrogenphosphate as setting materials and porcelain powder as core is 700ﾟC,the temperature was lower than the fusing temperature of the porcelain powder using this study. Furthermore, it was suggested that addition of whisker of 10-20 mum in length and 0.3-1.0 mum in diameter was very useful for improvement of bending strength of the ceramics prepared. The bending strength of the ceramics consisted of porcelain powder treated with zirconia solution (ZP) containing 2 or 4 wt% potassium titanate (PT) whisker showed excellently high. Addition of PT whisker did not affect on the wear-resistance of ZP ceramics. The surface roughness of ZP ceramics containing PT whisker increased slightly. While, the fitness of the inlay formed from this material was poor.
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