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치과 임플란트용 Ti-Ag 합금표면에 Micro-nano 구조형성

Other Titles
 Micro-Nano Structure Formation on Ti-Ag Alloy for Dental Implants 
 문승균  ;  강동국  ;  김경남  ;  김광만  ;  황재선  ;  오근택  ;  주욱현 
 Journal of the Korean Research Society for Dental Materials (대한치과기재학회지), Vol.34(2) : 29-36, 2007 
Journal Title
Journal of the Korean Research Society for Dental Materials(대한치과기재학회지)
Issue Date
Surface topography is crucial for the short and long term success of dental implants. It is known that surface roughness in the range of 1-10 ㎛ maximizes the interlocking between the bone and the surface of the implant. On the other hand, it is reported that osseointegration is promoted on surfaces of nano-metric level because surface profiles in the nano-metric level play an important role in the adsorption of proteins. Therefore hybrid surface consisted of micro and nanopore is expected to be the new surface treatment on Ti-Ag alloy for dental implants. The titanium-silver alloy developed for biomedical applications had better mechanical properties and corrosion resistance than pure titanium. And there has been no research on surface modification of titanium-silver alloy for dental implants. Therefore, the present paper reported on the formation of hybrid surface on titanium-silver alloy. The specimens were grit-blasted to obtain micro pore on the surface. After grit-blasting, the specimens were anodized at different anodizing voltages (20, 50 and 80V) for different times (10, 20, 40 and 60 min), in 0.5% HF aqueous solution at room temperature using a DC power supply. The surface topography of titanium-silver alloy was characterized by field emission scanning electron microscope (FE-SEM). It was believed that the topography of the hybrid surface was affected by electrochemical conditions. When titanium-silver alloy was anodized at 20 V for 1 hour, hybrid surface was uniformly formed. Therefore, it was considered that this surface treatment would be adapted cautiously to titanium-silver alloy for dental implants.
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2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kang, Dong Kuk(강동국)
Kim, Kyoung Nam(김경남)
Moon, Seung Kyun(문승균)
Joo, Uk Hyon(주욱현)
Hwang, Jae Sun(황재선)
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