Kim, Yeeun Tokushima University
Bae, Jiyoung Tokushima University
Uyama, Emi Tokushima University
Sekine, Kazumitsu Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Kawano, Fumiaki Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Calcium phosphate cement
Thesis or Dissertation
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.
|DOI (Published Version)|
|URL ( Publisher's Version )|
k3489_abstract.pdf 215 KB
k3489_review.pdf 58.2 KB
k3489_fulltext.pdf 10.3 MB
|MEXT report number||
Doctor of Dental Science