Takaaki Arahira
Kyushu Institute of Information Sciences
Composite numberMaxillaBiomedical engineeringComposite materialChemistryMaterials scienceMesenchymal stem cellStrain energy density functionBone tissueCharacterization (materials science)BioceramicImplantOrthodonticsComposite scaffoldBone regenerationBone tissue engineeringTissue engineeringPolymerPorosityMedicineScaffoldCell biology
75Publications
7H-index
184Citations
Publications 73
Newest
#1John DuckworthH-Index: 1
#2Takaaki ArahiraH-Index: 7
Last. Mitsugu TodoH-Index: 24
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The biomaterial poly(l-lactic acid) (PLLA) is commonly used for bone fixation devices and dental surgeries; however its natural osseointegrating ability is generally poor, which can lead to dislocation and partial fractures. Recently, calcium phosphate bioceramics have been incorporated into PLLA in order to redress this issue and improve the osseointegrating ability of the material. This study incorporated calcium phosphate microbeads in PLLA at various concentrations and measured their effect ...
2 CitationsSource
#1Takaaki Arahira (Kyushu Institute of Information Sciences)H-Index: 7
#2Mitsugu Todo (Kyushu University)H-Index: 24
Abstract Porous scaffolds comprising natural polymers and bioceramic particles have recently been used in tissue engineering. Collagen is one such natural polymer providing favorable biological conditions; for example, it stimulates the generation and differentiation of cells as an extracellular matrix. α-Tricalcium phosphate (α-TCP) and β-tricalcium phosphate (β-TCP) have also been widely used in bone tissue engineering owing to their favorable osteoconductivity, cellular adhesion, accelerated ...
1 CitationsSource
#1Yusuke Nakamuta (Sojo University)H-Index: 3
#2Takaaki Arahira (Kyushu Institute of Information Sciences)H-Index: 7
Last. Mitsugu Todo (Kyushu University)H-Index: 24
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Mesenchymal stem cells (MSCs) has been used as one of the new cell sources in osteochondral tissue engineering. It has been well known that control of their differentiation into chondrocytes plays a key role in developing engineered cartilages. Therefore, this study aims to develop a fundamental protocol to control the differentiation and proliferation of MSCs to construct an engineered cartilage. We compared the effects of three different culture conditions on cell proliferation, extracellular ...
3 CitationsSource
#1Michito Maruta (Fukuoka Dental College)H-Index: 13
#2Takaaki Arahira (Fukuoka Dental College)H-Index: 7
Last. Shigeki Matsuya (Fukuoka Dental College)H-Index: 27
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: Two types of synthetic carbonate apatite [potassium-containing carbonate apatite (CAK) and sodium-containing carbonate apatite (CANa)] were prepared and characterized by thermogravimetric analysis, X-ray diffraction analysis (XRD) and Fourier transform infrared spectroscopy. The chemical formulas of carbonate apatite were determined to be Ca9.36K0.12(PO4)5.12(CO3)0.88(OH)1.73 and Ca8.72Na1.33(PO4)4.96(CO3)1.04(OH)1.80, respectively. Thermogravimetric analysis showed that the final weight loss ...
1 CitationsSource
#1Yusuke Nakamuta (Sojo University)H-Index: 3
#2Takaaki Arahira (Kyushu Institute of Information Sciences)H-Index: 7
Last. Mitsugu Todo (Kyushu University)H-Index: 24
view all 3 authors...
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#1Takaaki ArahiraH-Index: 7
#2Mitsugu TodoH-Index: 24
Purpose: The purpose of this study is to characterize the effects of the implant treatment on the distribution of the strain energy density in the maxillas using finite element analysis.Methods: Three-dimensional maxillary bone models of a male and a female patient were constructed using their CT-images. The distributions of Young’s modulus were estimated from their bone mineral density distributions. Total six implants were embedded into each of the maxillary models. Finite element analysis of ...
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#1Takaaki Arahira (Fukuoka Dental College)H-Index: 7
#2Mitsugu Todo (Kyushu University)H-Index: 24
Abstract In the field of bone regeneration, regenerated bone graft has been the most primary concern rather than autografts and allografts. A regenerated bone graft may be developed by culturing and differentiating mesenchymal stem cells (MSCs) in a porous scaffold. In this chapter, two different structural scaffolds were fabricated using β-TCP and collagen. One is a collagen-based scaffold with β-TCP particles fabricated using freeze-drying methods. A collagen/β-TCP scaffold is known as a “part...
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#1Mitsugu Todo (Kyushu University)H-Index: 24
#2Yujie Luo (Kyushu University)
Last. Takaaki Arahira (Kyushu Institute of Information Sciences)H-Index: 7
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#1Takaaki ArahiraH-Index: 7
#2Mitsugu TodoH-Index: 24
A three-dimensional jaw bone model consisting of maxilla and mandible was constructed using CT- images. The distribution of Young’s modulus was also estimated from the bone density distribution. The developed model was then applied to analyze the effect of a spherical cyst located in the mandible on the mechanical condition in the jaw bone using the finite element method. An occlusion condition was used as the boundary condition by employing muscle forces. It was found that the strain energy den...
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#1Takaaki Arahira (Fukuoka Dental College)H-Index: 7
Last. Kanji Tsuru (Fukuoka Dental College)H-Index: 3
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