Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Ion Release and Biocompatibility of Sintered Ni-Cr-Ti Alloy for Dental Prosthodontics

치과보철용 Ni-Cr-Ti소결체합금의 이온용출과 생체적합성

  • Choe, Han-Cheol (Department of Dental Materials and Research Center of Nano-Interface Activation for Biomaterials, College of Dentistry, Chosun University) ;
  • Kim, Seung-Hui (Department of Dental Hygiene, Gwangju Health University)
  • 최한철 (조선대학교 치과대학 치과재료학교실) ;
  • 김승희 (광주보건대학교 치위생과)
  • Received : 2017.10.28
  • Accepted : 2017.10.30
  • Published : 2017.10.31
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Abstract

In this study, ion release and biocompatibility of sintered Ni-Cr-Ti alloy for dental prosthodontics have been researched by corrosion and cell culture test. The microstructures of the alloys were observed by optical microscope, and corrosion behavior was investigated using potentiostat (Model PARSTAT 2273, EG&G, USA). Cell culture was carried out using hGf cell in DMEM (Welgene Inc., South Korea) supplemented with 10% fetal bovine serum (FBS) (Welgene Inc., South Korea) and antibiotic antimycotic solution (Welgene Inc., South Korea). After corrosion and cell culture test, surface morphologies were observed by field-emission scanning electron microscopy. For wettability behaviors, contact angles were measured by wettability test. As the content of Ti increased, the number of pit decreased and the corrosion resistance was improved from anodic polarization test, also, polarization resistance of samples containing Ti remarkably improved as compared with the alloy not containing Ti. The sintered alloy showed a low contact angle due to the pores formed on the surface. The addition of Ti element showed that the cell survival rate was better than that of the control group.

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References

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