Faculty Profiles - MATSUMOTO Takuya

Papers - MATSUMOTO Takuya

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A Novel Ex Vivo Bone Culture Model for Regulation of Collagen/Apatite Preferential Orientation by Mechanical Loading Reviewed

Ryota Watanabe, Aira Matsugaki, Takuya Ishimoto, Ryosuke Ozasa, Takuya Matsumoto, Takayoshi Nakano

International Journal of Molecular Sciences 23 ( 13 ) 7423 - 7423 2022.7

Publishing type：Research paper (scientific journal) Publisher：MDPI AG

The anisotropic microstructure of bone, composed of collagen fibers and biological apatite crystallites, is an important determinant of its mechanical properties. Recent studies have revealed that the preferential orientation of collagen/apatite composites is closely related to the direction and magnitude of in vivo principal stress. However, the mechanism of alteration in the collagen/apatite microstructure to adapt to the mechanical environment remains unclear. In this study, we established a novel ex vivo bone culture system using embryonic mouse femurs, which enabled artificial control of the mechanical environment. The mineralized femur length significantly increased following cultivation; uniaxial mechanical loading promoted chondrocyte hypertrophy in the growth plates of embryonic mouse femurs. Compressive mechanical loading using the ex vivo bone culture system induced a higher anisotropic microstructure than that observed in the unloaded femur. Osteocytes in the anisotropic bone microstructure were elongated and aligned along the long axis of the femur, which corresponded to the principal loading direction. The ex vivo uniaxial mechanical loading successfully induced the formation of an oriented collagen/apatite microstructure via osteocyte mechano-sensation in a manner quite similar to the in vivo environment.

DOI： 10.3390/ijms23137423

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In vitro culture of hematopoietic stem cell niche using angiopoietin-1-coupled alginate hydrogel Reviewed

Jae Won Lee, Hyun Seung Kim, Soo-Jeong Yon, Takuya Matsumoto, Sang-Kyung Lee, Kuen Yong Lee

International Journal of Biological Macromolecules 209 1893 - 1899 2022.6

Shear bond strength of resin cement on moist dentin and its relation to the flexural strength of resin cement. Reviewed

Masao Irie, Masahiro Okada, Akio Yoshimoto, Yukinori Maruo, Goro Nishigawa, Takuya Matsumoto

Dental materials journal 41 ( 3 ) 429 - 439 2022.5

Language：English Publishing type：Research paper (scientific journal)

We sought to compare the bond strength of resin cement on moist dentin to that on dry dentin, and determine the relationship between the bond strength and flexural strength of resin cement. The water content of the moist and dry dentins was estimated using infrared spectroscopy. Four adhesive and three self-adhesive resin cements were used. At three times of immediately, after one-day storage, and after 20,000 thermocycles (TC 20k), the shear bond strengths were measured. For all resin cements, both the shear bond strength and the flexural strength were the lowest immediately after setting; however, after one day of water storage or TC 20k, these resin cements had the highest values. Regardless of the condition of the dentin surface upon shear bond strength, the flexural strength of each resin cement was correlated with the shear bond strength of the dentin surface.

DOI： 10.4012/dmj.2021-278

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新しい合着用レジン添加型グラスアイオノマーセメント接着強さと曲げ特性

入江正郎, 丸尾幸憲, 西川悟郎, 松本卓也

日本歯科理工学会誌 41 ( Special Issue79 ) 66 - 66 2022.5

新しい合着用レジン添加型グラスアイオノマーセメント接着強さと曲げ特性

入江正郎, 丸尾幸憲, 西川悟郎, 松本卓也

日本歯科理工学会誌 41 ( Special Issue79 ) 66 - 66 2022.5

Mechanotransductive Mechanisms of Biomimetic Hydrogel Cues Modulating Meckel's Cartilage Degeneration Reviewed

Mahmoud Farahat, Emilio S. Hara, Risa Anada, Gulsan A.S. Kazi, Nahid M. Akhter, Takuya Matsumoto

Advanced Biology 2101315 - 2101315 2022.3

Self-adhering implantable device of titanium: Enhanced soft-tissue adhesion by sandblast pretreatment Reviewed

Atsushi Yabe, Masahiro Okada, Emilio Satoshi Hara, Yasuhiro Torii, Takuya Matsumoto

Colloids and Surfaces B: Biointerfaces 211 112283 - 112283 2022.3

Cyclic Pressure-Induced Cytokines from Gingival Fibroblasts Stimulate Osteoclast Activity: Clinical Implications for Alveolar Bone Loss in Denture Wearers Reviewed

Yoshihiro Akashi, Atsuhiro Nagasaki, Hiroko Okawa, Takuya Matsumoto, Takeru Kondo, Hirofumi Yatani, Ichiro Nishimura, Hiroshi Egusa

Journal of Prosthodontic Research 2022

Flexural Property of a Composite Biomaterial in Three Applications Reviewed

Masao Irie, Yukinori Maruo, Goro Nishigawa, Takuya Matsumoto

JOURNAL OF COMPOSITES SCIENCE 5 ( 10 ) 2021.10

新規開発の仮封材 I級窩洞辺縁部適合性と圧縮強さ

入江正郎, 丸尾幸憲, 西川悟郎, 松本卓也

日本歯科理工学会誌 40 ( Special Issue78 ) 40 - 40 2021.9

前歯用CAD/CAMブロックに対するレジンセメントの接着強さの検討 Self-cure vs.Dual-cure

入江正郎, 丸尾幸憲, 西川悟郎, 皆木省吾, 松本卓也

接着歯学 39 ( 3 ) 77 - 77 2021.9

人工歯周組織ユニット創製のためのアパタイトコーティング法の開発

岡田正弘, 木村剛, 中村奈緒子, 岸田晶夫, 松本卓也

日本歯科理工学会誌 40 ( Special Issue78 ) 51 - 51 2021.9

Relationships between Flexural and Bonding Properties, Marginal Adaptation, and Polymerization Shrinkage in Flowable Composite Restorations for Dental Application. International journal

Akimasa Tsujimoto, Masao Irie, Erica Cappelletto Nogueira Teixeira, Carlos Alberto Jurado, Yukinori Maruo, Goro Nishigawa, Takuya Matsumoto, Franklin Garcia-Godoy

Polymers 13 ( 16 ) 2021.8

Language：English Publishing type：Research paper (scientific journal)

To evaluate the flexural and bonding properties, marginal adaptation, and polymerization shrinkage in flowable composite restorations and their relationships, four new generation flowable composites, one conventional, and one bulk-fill flowable composite were used in this study. Flexural properties of the composites and shear bond strength to enamel and dentin for flowable restorations were measured immediately and 24 h after polymerization. Marginal adaptation, polymerization shrinkage, and stress were also investigated immediately after polymerization. The flexural properties, and bond strength of the flowable composites to enamel and dentin were much lower immediately after polymerization than at 24 h, regardless of the type of the composite. Polymerization shrinkage and stress varied depending on the material, and bulk-fill flowable composite showed much lower values than the others. The marginal adaptation and polymerization shrinkage of the composites appeared to have a much stronger correlation with a shear bond strength to dentin than to enamel. The weak mechanical properties and bond strengths of flowable composites in the early stage after polymerization must be taken into account when using them in the clinic. In addition, clinicians should be aware that polymerization shrinkage of flowable composites can still lead to the formation of gaps and failure of adaptation to the cavity regardless of the type of composite.

DOI： 10.3390/polym13162613

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Immediate soft-tissue adhesion and the mechanical properties of the Ti–6Al–4V alloy after long-term acid treatment Reviewed International journal

Yaming Wang, Masahiro Okada, Shi Chao Xie, Yu Yang Jiao, Emilio Satoshi Hara, Hiroaki Yanagimoto, Takumi Fukumoto, Takuya Matsumoto

Journal of Materials Chemistry B 9 ( 39 ) 8348 - 8354 2021.8

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry (RSC)

A metallic solid-state adhesive for biological soft tissues was fabricated using Ti–6Al–4V alloys, and the influence of the minor β phase and the small amount of Al in the α phase are reported.

DOI： 10.1039/d1tb00919b

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2ステップボンディング材の初期接着強さの経時的変化

矢部淳, 入江正郎, 岡田正弘, 武田宏明, 鳥井康弘, 松本卓也

特定非営利活動法人日本歯科保存学会学術大会プログラムおよび講演抄録集 154回 99 - 99 2021.5