A Study of Multi-Surface Treatments on the Porous Ti Implant for the Enhancement of Bioactivity

Abstract

Porous Ti implant samples were fabricated by the sintering of spherical Ti powders in a high vacuum furnace. To increase their surface area and biocompatibility, anodic oxidation and a hydrothermal treatment were then applied. Electrolytes in a mixture of glycerophosphate and calcium acetate were used for the anodizing treatment. The resulting oxide layer was found to have precipitated in the phase form of anatase TiO 2 and nano-scaled hydroxyapatite on the porous Ti implant surface. The porous Ti implant can be modified via an anodic oxidation method and a hydrothermal treatment for the enhancement of the bioactivity, and current multi-surface treatments can be applied for use in a dental implant system. Key words Ti implant, porous, hydroxyapatite, bioactive, surface treatment. 실험 방법실험에 사용할 시편은 200~250 µm 크기의 Ti 분말