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ID 116056
Title Alternative
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
Author
Kim, Yeeun Tokushima University
Bae, Jiyoung Tokushima University
Uyama, Emi Tokushima University
Keywords
Zirconia additives
Calcium phosphate cement
Hydroxyapatite
Mechanical properties
Injectability
Content Type
Thesis or Dissertation
Description
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.
Journal Title
Ceramics International
ISSN
02728842
NCID
AA10622625
AA11523301
Publisher
Elsevier|Techna Group
Volume
47
Issue
2
Start Page
1882
End Page
1890
Published Date
2020-09-03
Remark
内容要旨・審査要旨・論文本文の公開
本論文は,著者Yeeun Kimの学位論文として提出され,学位審査・授与の対象となっている。
著者の申請により要約(2021-06-22公開)に替えて論文全文を公開(2021-06-28)
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
ETD
MEXT report number
甲第3489号
Diploma Number
甲口第467号
Granted Date
2021-03-23
Degree Name
Doctor of Dental Science
Grantor
Tokushima University
departments
Oral Sciences