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논문 기본 정보

자료유형
학술저널
저자정보
전우용 (광양보건대학교)
저널정보
대한치과재료학회 대한치과재료학회지 치과기재학회지 제37권 제1호
발행연도
2010.3
수록면
69 - 74 (6page)

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The purpose of this study was to investigate the bone conduction of Ti-6Al-4V alloy modified by anodic oxidation and precalcification treatments. Specimens of 20 × 10 × 1 ㎜ in dimensions were polished sequentially from #220 to #1000 SiC paper, ultrasonically washed with acetone, then rinsed with deionized water. The electrolyte for anodization process consisted of 0,5 M Na2S04 and 0.7 Wt% NaF. Anodization was carried out at a potential of 20 V and current density of 20 ㎃/㎠ for 2 hours. Specimens were heat-treated at 500℃ for 2 hours and precalcified by soaking in Na₂HPO₄ solution for 24 hours and then in saturated Ca(OH)₂ solution for 5 hours. To evaluate the activity of the precalcified TiO₂ nanotube layer, modified specimens were immersed in simulated body fluid with pH 7.4 at 36.5℃ for 10 days. The results obtained were summarized as follows; 1. Vertically-oriented self-organized TiO₂ nanotubes of diameters 60.0~90.0 ㎚ were fabricated by anodizing treatment at 20 V for 2 h in an 0.5 M Na₂SO₄ and 0.7 NaF solution. 2. The amorphous structure of anodized TiO₂ nanotubes was changed to anatase structure after heat treatment at 590 ℃ for 2 h. 3. The F ion in anodized TiO₂ nanotube layer was removed after heat-treatment at 500 ℃. 4. The bone conduction of TiO₂ nanotube layer was more enhanced by precalcification treatment in the solution containing calcium and phosphate ions.

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UCI(KEPA) : I410-ECN-0101-2015-510-001110970