Effects of zirconia additives on β-tricalcium-phosphate cement for high strength and high injectability

• Material Type: 博士論文
• Title: Effects of zirconia additives on β-tricalcium-phosphate cement for high strength and high injectability
• Author/Editor: Kim, Yeeun; Bae, Jiyoung; Uyama, Emi; Sekine, Kazumitsu; Kawano, Fumiaki; Hamada, Kenichi
• Author Heading: Kim, Yeeun; Bae, Jiyoung; Uyama, Emi; Sekine, Kazumitsu; Kawano, Fumiaki; Hamada, Kenichi
• Publication, Distribution, etc.: Elsevier|Techna Group
• Publication Date: 2020-09-03
• Publication Date (W3CDTF): 2020-09-03
• Alternative Title: 強度と注入性に優れるβ-TCP基セメントへのジルコニア添加の効果
• Periodical title: Ceramics International
• No. or year of volume/issue: 47 2
• Volume: 47
• Issue: 2
• Pages: 1882-1890
• ISSN (Periodical Title): ISSN : 0272-8842
• Degree grantor/type: 徳島大学
• Date Granted: 2021-03-23
• Dissertation Number: 甲第3489号
• Degree Type: 博士（歯学）
• Text Language Code: eng
• Subject Heading: Zirconia additives; Calcium phosphate cement; Hydroxyapatite; Mechanical properties; Injectability
• Target Audience: 一般
• Note (General): Injectable calcium phosphate cements (CPCs) exhibit many advantages as bone substitution materials. However, the strength of injectable CPCs after setting are often insufficient. In our previous studies, mechano-chemically modification of β-tricalcium phosphate cement powder through a planetary ball-milling process exhibited simultaneous improvement in the strength and injectability of CPC. Two plausible effects of this process are: changes in the CPC powder properties and zirconia abrasion powder contamination from the milling pot and balls. The objective of the present study is to separately evaluate these two effects on the strength and injectability of CPCs. The calculated injectability of the cement paste with and without the addition of zirconia powder were higher than 65% at 6 h after mixing. These values were much higher than that of the CPC paste without mechano-chemically modification, and similar to that of CPC with zirconia abrasion powder contamination. By contrast, the compression strength of the set CPC with zirconia powder additives were higher than that without the addition, and similar to that of CPC with zirconia abrasion powder contamination. These results suggest that the changes in the CPC powder properties due to mechano-chemically modification mainly affected the injectability of the CPC paste, and the zirconia abrasion powder contamination of the CPC powder affected the strength of the set CPC.
• Access Restrictions: インターネット公開
• Related Material (DOI): 10.1016/j.ceramint.2020.09.017
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 徳島大学 : 徳島大学機関リポジトリ

Table of Contents

http://repo.lib.tokushima-u.ac.jp/files/public/11/116056/20210615094040680207/k3489_abstract.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/116056/20210615094041362119/k3489_review.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/116056/20210628135907837230/k3489_fulltext.pdf fulltext