교정장치로부터의 니켈과 크롬의 유리에 관한 연구
A study on the release of nickel and chromium from simulated orthodontic appliances
류정현, 오소택, 강경화,
소속 상세정보
류정현 ( ) - 원광대학교 치과대학 교정학교실
오소택 ( ) - 원광대학교 치과대학 교정학교실
강경화 ( ) - 원광대학교 치과대학 교정학교실
KMID : 0361920030330050351
Abstract
Nickel and chromium are two major metals used in the alloys of most orthodontic appliances. But these metals. are known to cause hypersensitivity, dermatitis, and asthma. In addition, a significant carcinogenic and mutagenic potential has been demonstrated for compounds containing these metals. The purpose of this study was to find out how much nickel and chromium was released from orthodontic appliances, and which factors would influence the release. The simulated orthodontic appliances were constructed for a half of a mandibular arch and incubated in 0.059´o NaCl solution at 37t. Nickel and chromium release was quantified with an Inductively Coupled Plasma (ICP) spectroanalyzer.
The results were as follows
1. From simulated orthodontic appliances, nickel was released 9.83-70.0g/Jay but the release of chromium was not detectable in limit of 10ppb. `
2. The amount of nickel release was significantly different between the types of appliances.
3. The galvanic condition increased the amount of nickel release, which was not statistically significant. 4. The. sand blasting increased the amount of nickel release, which was also riot statistically significant.
키워드
니켈 유리;크롬 유리;Nickel release;Chromium release
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