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ID 114682
タイトル別表記
マイクロファイバーを用いた多孔質炭酸アパタイト顆粒の開発とウサギ頭蓋骨における組織学的評価
著者
秋田, 和也 徳島大学大学院口腔科学教育部(口腔科学専攻)
鎌田, 久美子 Tokushima University
Tsuru, Kanji Fukuoka Dental College
Ishikawa, Kunio Kyushu University
キーワード
bone formation
bone substitute
carbonate apatite
hydroxyapatite
optimal pore size
資料タイプ
学位論文
抄録
Carbonate apatite (CO3Ap) granules are known to show good osteoconductivity and replaced to new bone. On the other hand, it is well known that a porous structure allows bone tissue to penetrate its pores, and the optimal pore size for bone ingrowth is dependent on the composition and structure of the scaffold material. Therefore, the aim of this study was to fabricate various porous CO3Ap granules through a two-step dissolution-precipitation reaction using CaSO4 as a precursor and 30-, 50-, 120-, and 205-μm diameter microfibers as porogen and to find the optimal pore size of CO3Ap. Porous CO3Ap granules were successfully fabricated with pore size 8.2-18.7% smaller than the size of the original fiber porogen. Two weeks after the reconstruction of rabbit calvarial bone defects using porous CO3Ap granules, the largest amount of mature bone was seen to be formed inside the pores of CO3Ap (120) [porous CO3Ap granules made using 120-μm microfiber] followed by CO3Ap (50) and CO3Ap (30). At 4 and 8 weeks, no statistically significant difference was observed based on the pore size, even though largest amount of mature bone was formed in case of CO3Ap (120). It is concluded, therefore, that the optimal pore size of the CO3Ap is that of CO3Ap (120), which is 85 μm.
掲載誌名
Journal of Biomedical Materials Research Part A
ISSN
15493296
15524965
cat書誌ID
AA11881516
出版者
Wiley
108
3
開始ページ
709
終了ページ
721
発行日
2019-11-22
備考
内容要旨・審査要旨・論文本文の公開
本論文は,著者Kazuya Akita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。
This is the peer reviewed version of the following article: Kazuya Akita, Naoyuki Fukuda, Kumiko Kamada, Keiko Kudoh, Naito Kurio, Kanji Tsuru, Kunio Ishikawa, Youji Miyamoto. Fabrication of porous carbonate apatite granules using microfiber and its histological evaluations in rabbit calvarial bone defects. J Biomed Mater Res. 2020; 108A: 709– 721., which has been published in final form at https://doi.org/10.1002/jbm.a.36850. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
博士論文全文を含む
文科省報告番号
甲第3375号
学位記番号
甲口第454号
学位授与年月日
2020-03-23
学位名
博士(歯学)
学位授与機関
徳島大学
部局
歯学系