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, 송재상, 박수철,
소속 상세정보
김홍식 ( Kim Hong-Sik ) - 김천대학교 치기공과
송재상 ( Song Jae-Sang ) - 김천대학교 치기공과
박수철 ( Park Soo-Chul ) - 김천대학교 치기공과
KMID : 0362120120340040337
Abstract
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 10 and stored in the corrosive solution(pH 2.2-4.4) in the electrical water bath(37 ) for seven days. Afterwards, the metal ions were quantitatively analyzed using the ICP.
Results: Of the three metal alloys, Bellabond-Plus alloy and SOLIBOND N alloy, with 22% or higher chrome chemical contents, had higher corrosion resistance than Jdium-100 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
non-beryllium Ni-Cr alloy; denture base metal; Porcelain-fused-to-metal; corrosion
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