Mechanical Properties and Histological Evaluation of Bone Grafting Materials Containing Different Ratios of Calcium Phosphate Cement and Porous β-tricalcium Phosphate Granules
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- TANAKA Hirokazu
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine Department of Dentistry and Oral Surgery, Aizawa Hospital
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- YAMADA Shin-ichi
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- AIZAWA Hitoshi
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- HAYASHI Kiyonori
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- SHIMANE Tetsu
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- KARASAWA Imahito
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- YOSHIMURA Nobuhiko
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- NISHIMAKI Fumihiro
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- ARAKAWA Yuko
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
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- KURITA Hiroshi
- Department of Dentistry and Oral Surgery, Shinshu University S chool of Medicine
書誌事項
- タイトル別名
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- Mechanical Properties and Histological Evaluation of Bone Grafting Materials Containing Different Ratios of Calcium Phosphate Cement and Porous <i>β</i>-tricalcium Phosphate Granules
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Objective : Although calcium phosphate cement (CPC) is a bone substitute material having good formativeness, biocompatibility, and osteoconductivity, it has very slow biodegradability in vivo. This study aimed to create a new porous bone cement with enough strength, good formativeness, biodegradation, and osteoconductivity for bone regeneration by adding porous β-tricalcium phosphate (β-TCP) granules to CPC.<br> Methods : A commercially available CPC and porous β-TCP were used in this study. Three testing materials with different mixing ratios of CPC and β-TCP (C0, C30 and C50, having mixing ratios of β-TCP of 0, 30, and 50 wt%, respectively) were examined. We evaluated the basic materialological properties in vitro. In addition, biodegradation and osteoconductivity were evaluated in vivo by implantation in rabbit femurs.<br> Results : The setting times for C30 (15 minutes) and C50 (18 minutes) were thought to be within a clinically acceptable range. Although the compressive strength decreased with increasing content of β-TCP, that of C50 was the same as for cancellous bone. The porosity and permeability increased with addition of more β-TCP granules. Histological evaluation revealed that biodegradability of the material increased with the addition of more β-TCP granules and the material had good bioactivity. Notably, at 36 weeks after implantation, C50 was almost completely resorbed and replaced by regenerated bone.<br> Conclusions : The results of this study suggested that the composite created by adding equal weight percent of porous β-TCP granules to CPC paste had good biodegradability and adequate mechanical strength, and was adaptable as a bone substitute for bone defect repairs.
収録刊行物
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- 信州医学雑誌
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信州医学雑誌 66 (2), 139-150, 2018-04-10
信州医学会
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詳細情報 詳細情報について
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- CRID
- 1390001288038038016
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- NII論文ID
- 130007396519
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- NII書誌ID
- AN00120815
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- ISSN
- 18846580
- 00373826
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- HANDLE
- 10091/00020550
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- NDL書誌ID
- 028998608
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可