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Influence of the number of insertions and removals of telescopic zirconia/alumina crowns on retentive force and settling
https://osaka-dent.repo.nii.ac.jp/records/213
https://osaka-dent.repo.nii.ac.jp/records/21389327dd4-5e97-4979-a7dd-0c40c7b0df55
| 名前 / ファイル | ライセンス | アクション |
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学位論文 (1.4 MB)
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論文内容要旨・審査結果要旨 (235.5 kB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2019-05-17 | |||||||||
| 本文言語 | ||||||||||
| 言語 | eng | |||||||||
| タイトル | ||||||||||
| タイトル | Influence of the number of insertions and removals of telescopic zirconia/alumina crowns on retentive force and settling | |||||||||
| 著者 |
吉川, 佑輔
× 吉川, 佑輔
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| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Ce-TZP/Al2O3｜Insertion and removal｜Retentive force｜Taper｜Telescopic crowns | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Telescopic crowns made from zirconia/alumina can be manufactured using computer-aided design/computer-aided manufacturing systems. For their successful clinical use, a suitable retentive force must be maintained over an extended period. However, it is unclear how retentive force and secondary crown settling change after repeated crown insertion and removal. The aim of the present study was to investigate the changes in retentive force and secondary crown settling of telescopic crowns made from zirconia/alumina. Primary crowns with tapers of 2° and 4° were used. Repeated insertion and removal tests were performed for 10,000 cycles at a cyclic load of 50 N. The loads applied when measuring retentive force and settling were 50 N and 100 N. The number of insertions and removals had a significant effect on retentive force and settling at both loads (p<0.01). Taper also had a significant effect on retentive force and settling at both loads (p<0.01). | |||||||||
| 学位名 | ||||||||||
| 学位名 | 博士（歯学） | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 34408 | |||||||||
| 学位授与機関名 | 大阪歯科大学 | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2019-03-08 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第841号 | |||||||||
