Micro-CT Analysis of Rabbit Cancellous Bone Around Implants
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概要
- 論文の詳細を見る
The aim of this study is to observe the three-dimensional structure of cancellous bone formed around dental implants using micro-CT.Methods: Ti implants (Ti-15%Zr-4%Nb-4%Ta alloy, 2.8mm diameter, 10mm length, machine-polished) were placed in surgically created bone defects in rabbit femurs (New Zealand White Rabbits). The rabbit femurs with the implants were removed 6 weeks after implantation and preserved in formalin. Micro-CT analysis was performed using three types of machine, TOSCANER-31300 mhd^[○!R] (Voltage: 80 kV, Current: 120 iA, Focus size: 45im, Toshiba Co., Japan), TDM1000^[○!R] (Voltage: 95 kV, Current: 6 iA, Focus size: 5 im, Yamato Kagaku, Japan) and SkyScan-2011^[○!R] (Voltage: 80 kV, Current: 200 iA, Focus size: 0.4im, Tohken Co., Japan) and data obtained were compared. The best conditions were taken to obtain the best images for each equipment.Results: Critical conditions for micro-CT analyses included: slice pitch, slice thickness, voltage, current and type of equipment. The smaller the slice spacing and the smaller the slice thickness, the clearer the micro-CT images obtained. Many artifacts appeared with TOSCANER-31300 mhd^[○!R], but disappeared with TDM1000^[○!R]. SkyScan-2011^[○!R] provided the most detailed images. Micro-CT made possible quantitative analysis of newly formed bone surrounding the dental implants. Conclusion: Micro-CT analysis is a good non-destructive method to obtain three-dimensional structure of trabecular bone with maximum resolution (10 im).
- 硬組織再生生物学会の論文
著者
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Nakada Hiroshi
Department of Biotechnology, Faculty of Engineering, Kyoto Sangyo University
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Nakada Hiroshi
Department Of Gnatho-oral Prosthetic Rehabilitation Nihon University School Of Dentistry At Matsudo
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Sakae Toshiro
Department of Anatomy, Nihon University School of Dentistry at Matsudo
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Sakae Toshiro
日本大学松戸歯学部 組織発生解剖学
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Sakai Takeshi
Inst. Of Mineralogy Petrology And Economic Geology Graduate School Of Sci. Tohoku Univ.
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Sakae Toshiro
Department Of Anatomy Nihon University School Of Dentistry At Matsudo
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Suwa Taketoshi
Departments of Gnatho-Oral Prosthetic Rehabilitation, Nihon University School of Dentistry at Matsud
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Nakada Hiroshi
Department Of Biotechnology Faculty Of Engineering Kyoto Sangyo University
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Sakae Toshiro
Department Of Anatomy Ii Nihon University School Of Dentistry At Matsudo
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Numata Yasuko
Nihon University Graduate School Of Dentistry At Matsudo Complete Denture Prosthodontics
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Okazaki Yoshimitsu
Institute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Sc
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Kobayashi Kihei
Nihon University Research Center
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Tanaka Shigeo
Department Of Anatomy Nihon University School Of Dentistry At Matsudo
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Sakai Takeshi
Nihon Univ. Tokyo Jpn
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Le Geros
Department of Biomaterials and Biomimetics, New York University College of Dentistry
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Le Geros
Department Of Biomaterials And Biomimetics New York University College Of Dentistry
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Sakae Toshiro
Departments Of Oral Histology Nihon University School Of Dentistry
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Nakada Hiroshi
Graduate School Of Science And Technology Nihon University
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Okazaki Yoshimitsu
Institute For Human Science And Biomedical Engineering National Institute Of Advanced Industrial Sci
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Kobayashi Kihei
Nihon University Of Dentistry At Matsudo
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