Influence of Surface Asperity Made by Selective Laser Melting Additive Manufacturing on Bioactivity in Rat Femur
| Autor: | Asuka Kutsukake, Yoshinori Yoshida |
|---|---|
| Přispěvatelé: | Gifu University |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Surface (mathematics)
0209 industrial biotechnology Materials science 02 engineering and technology Industrial and Manufacturing Engineering Diaphysis [SPI]Engineering Sciences [physics] 020303 mechanical engineering & transports 020901 industrial engineering & automation medicine.anatomical_structure 0203 mechanical engineering Artificial Intelligence medicine Cortical bone Femur Implant Selective laser melting Composite material Contact area Asperity (geotechnical engineering) |
| Zdroj: | Procedia Manufacturing Procedia Manufacturing, Elsevier, 2020, 47, pp.1101-1105. ⟨10.1016/j.promfg.2020.04.124⟩ |
| ISSN: | 2351-9789 |
| Popis: | Bioactivity of the surface of the Ti-6Al-4V implant model manufactured by additive manufacturing with selective laser melting is investigated. The shape of the implant model is quadratic beam and a model has three types of surface; (a) top surface, (b) side surface and (c) polished surface. Each asperity of the surfaces is different respectively and an implant model into each femur of 5-week-old IGS rats. 2 weeks after the implantation, the influence of the asperity on the bioactivity is evaluated by bone-implant contact area ratio (RB-I). The RB-I is evaluated on each surface which is contact with cortical bone and bone marrow, respectively. As the results, it is found that osteoinductivity appears on the surface created with AM in diaphysis of the femur in short term after the implantation. The RB-I of the surfaces is almost same, when they contact with bone marrow. When the surfaces contact with cortical bone, the bioactivity of side surface is larger than that of top surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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