Fracture resistance of screw-retained implant-supported zirconia-based prostheses
| Project/Area Number |
15K11175
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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 | Nihon University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
松村 英雄 日本大学, 歯学部, 教授 (40199857)
橋口 亜希子 日本大学, 歯学部, 助教 (70386069)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | ジルコニア / インプラント上部構造 / スクリュー固定 / 破壊抵抗 / ジルコニア補綴装置 |
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| Outline of Final Research Achievements |
The objective of this in vitro study was to investigate fracture loads of screw-retained zirconia-based molar prostheses (hybrid abutment crown) fabricated with different restorative materials and designs.
Within the limitations of this in vitro study, the following conclusions were drawn: 1. Fracture loads were significantly higher for screw-retained implant-supported monolithic zirconia prostheses than for screw-retained bilayered prostheses. 2. The fracture resistance of the indirect compositelayered zirconia-based prostheses was comparable to that of the porcelain-layered zirconia-based prostheses and metal ceramic prostheses. 3. All screw-retained implant-supported prostheses tested were able to withstand physiological molar masticatory forces.
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Report
(4 results)
Research Products
(25 results)
