2023 Fiscal Year Final Research Report
Study on bonding of highly light transmissive dental zirconia
| Project/Area Number |
21K09962
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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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| Review Section |
Basic Section 57040:Regenerative dentistry and dental engineering-related
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| Research Institution | Nihon University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
平場 晴斗 日本大学, 歯学部, 助教 (00800989)
小平 晃久 日本大学, 歯学部, 助教 (70843150)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 高光透過性歯科用ジルコニア |
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| Outline of Final Research Achievements |
The purpose of this study was conducted to obtain good firing strength on highly light-transmissive zirconia frames for stable prognosis of highly light-transmissive zirconia ceramic protheses in the oral cavity. Fluorine compounds were applied to the surface of zirconia ceramics and pretreated for bonding. As a result, the following findings were obtained.
1. Heat treatment with fluorine compounds significantly affected the bonding durability between zirconia frames and veneering porcelain. 2. Improvement of bonding durability was observed for highly light-transmissive zirconia ceramics as well as for conventional zirconia ceramics.
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| Free Research Field |
歯科理工学
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| Academic Significance and Societal Importance of the Research Achievements |
ジルコニアセラミックスをフレームとするブリッジへは、審美性を考慮した長石質系陶材を焼付け前装する。その際、ジルコニアセラミックス表面にフッ素化合物による熱処理を加えることにより前装ブリッジの長期的に安定した予後を得ることが示された。これにより、ジルコニアセラミックス補綴装置の製作において、歯科技工操作の重要な情報を得ることができた。従来のアルミナブラスト処理とは異なり、ジルコニアセラミックス表面の微細な傷を付与しない術式の提示は、ブリッジのより確実に安定した長期的予後を獲得できると考える。
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