대한치과기공학회지 (Journal of Technologic Dentistry)

  • 제34권4호
  • /
  • Pages.337-344
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  • 2012
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  • 1229-3954(pISSN)
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  • 2288-5218(eISSN)
대한치과기공학회 (Korean Academy of Dental Technology)
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베릴륨 불포함 치과 주조용 니켈-크롬 합금 중 금속의치상용 합금과 금속소부도재관용 합금의 부식에 관한연구

Corrosion of the non-beryllium dental casting Ni-Cr alloys for the denture base framework metal and the porcelain-fused-to-metal crown

  • 김홍식 (김천대학교 치기공학과) ;
  • 송재상 (김천대학교 치기공학과) ;
  • 박수철 (김천대학교 치기공학과)
  • Kim, Hong-Sik (Department of Dental Technology, Gimcheon University) ;
  • Song, Jae-Sang (Department of Dental Technology, Gimcheon University) ;
  • Park, Soo-Chul (Department of Dental Technology, Gimcheon University)
  • 투고 : 2012.07.26
  • 심사 : 2012.12.24
  • 발행 : 2012.12.30
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초록

Purpose: This study examined the corrosion level by alloy type and pH, and used the corrosion levels as the dental health data. The study utilized one Ni-Cr alloy for the full and removable partial denture metal frameworks and two Ni-Cr alloys for porcelain-fused-to-metal crown, among the non-beryllium dental casting non-precious Ni-Cr alloys. Methods: The alloy specimens were manufactured in $10cm^2$ and stored in the corrosive solution(pH 2.2-4.4) in the electrical water bath($37^{\circ}C$) for seven days. Afterwards, the metal ions were quantitatively analyzed using the ICP. Results: Of the three metal alloys, Bellabond-Plus$^{(R)}$alloy and SOLIBOND N$^{(R)}$alloy, with 22% or higher chrome chemical contents, had higher corrosion resistance than Jdium-100$^{(R)}$alloy with 20% chrome chemical content. In all three alloys, the corrosion of Ni was highest, and metal ion corrosion was higher in the pH 2.2 corrosive solution. Conclusion: Although Ni-Cr alloy was not very corrosive, a Ni-allergic patient should not have Ni-Cr alloy prosthesis. The Ni-Cr alloy for porcelain-fused-to-metal crown should be designed for the dental porcelain to cover the whole crown.

키워드

참고문헌

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피인용 문헌

  1. 치과기공사 실기시험 개선에 관한 조사 연구 II vol.36, pp.1, 2012, https://doi.org/10.14347/kadt.2014.36.1.39