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Surface Modification on Titanium Substrate for Osteoconductive Properties
Ryoichi Ichino,Kensuke Kuroda,Masazumi Okido 한국표면공학회 2010 한국표면공학회 학술발표회 초록집 Vol.2010 No.11
Many kinds of surface modification by wet processes for osteoconductive properties were performed on Ti substrate. Hydroxyapatite, titania, and carbonate apatite ceramics are coated on Ti substrate. Composite coatings with them or with collagen were also coated on Ti substrate. HAp coatings with different morphology were fabricated by wet processes, and those with needle-like morphology had the highest osteoconductivity by in vivo evaluation among the HAp coated Ti samples. The osteoconductivity also improved by adding effective amount of collagen in the HAp coatings. Titania coatings prepared by anodizing also had good osteoconductivities.
Surface Treatment on Titanium for the Fabrication of Bone-Compatible Materials
Dai Yamamoto,Kensuke Kuroda,Ryoichi Ichino,Masazumi Okido 한국표면공학회 2010 한국표면공학회 학술발표회 초록집 Vol.2010 No.11
The aim of this study was to investigate important factors that influence on the osteoconductivity of TiO₂. TiO₂ coatings were fabricated on titanium using anodizing with their surface roughness controlled at micron-level to evaluate the influence of surface roughness. The influence of oxidizing process was also discussed by comparing wetprocess to dry-process; anodizing and high temperature oxidation. In conclusion, TiO₂ coatings improved the osteoconductivity of Ti substrates. TiO₂ coatings indicated high osteoconductivity only when Ra < 0.3 ㎛. Moreover, wet-process was better than dry-process to form osteoconductive TiO₂ coating on titanium substrate.