Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
권호 표지

Effects of Blasting and Acidic Treatment on the Corrosion Characteristics of Dental Implant Fabricated with Cp-Ti and Ti-6Al-4V Alloy

Cp-Ti와 Ti-6Al-4V 합금으로 제조된 치과용 임플란트의 부식특성에 관한 블라스팅과 산세처리의 영향

  • Moon, Young-Pil (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University) ;
  • Choe, Han-Cheol (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University) ;
  • Park, Su-Jung (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University) ;
  • Kim, Won-Gi (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University) ;
  • Ko, Yeong-Mu (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University)
  • 문영필 (조선대학교 치과대학 치과재료학교실 및 생체재료나노계면활성화센터) ;
  • 최한철 (조선대학교 치과대학 치과재료학교실 및 생체재료나노계면활성화센터) ;
  • 박수정 (조선대학교 치과대학 치과재료학교실 및 생체재료나노계면활성화센터) ;
  • 김원기 (조선대학교 치과대학 치과재료학교실 및 생체재료나노계면활성화센터) ;
  • 고영무 (조선대학교 치과대학 치과재료학교실 및 생체재료나노계면활성화센터)
  • Published : 2006.08.30
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Abstract

The effects of blasting and acidic treatment on the corrosion characteristics of dental implant fabricated with Cp-Ti and Ti-6Al-4V alloy have been researched by using electrochemical methods. The fabricated implants were cleaned and sandblasted by $Al_2O_3$ powder and then acidic treatment was carried out in nitric acid solution. The surface morphology were observed using scanning electron microscope. The corrosion behaviors were investigated using potentiosat and EIS in 0.9% NaCl solution at $36.5{\pm}1^{\circ}C$. The potentio-dynamic test in 0.9% NaCl indicated that the corrosion potential of blasting and acidic treated implant was lower than that of non treated implant, but current density was higher than that of non treated implant. From the cyclic potentiodynamic test results of Ti implant, the passivation current density of blasting and acidic treated implant slightly higher than that of non treated implant. From A.C. impedance test results in 0.9% NaCl solution, polarization resistance($R_p$) value of blasting and acidic treated implant was lower than that of non treated implant. In case of blasting and acidic treated implant surface, the pits were observed in valley and crest of implant surface.

Keywords

References

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