金/铂牙科合金中的离子释放：在归因于金的接触性过敏中，其他元素的释放是否可解释？
Ion release from gold/platinum dental alloy: could release of other elements be accountable in the contact allergy attributed to the gold?
作者信息
Celebić A, Baucić M, Stipetić J, Baucić I, Miko S, Momcilović B
机构信息
School of Dental Medicine, University of Zagreb, Gundulićeva 5, Zagreb, Croatia.
出版信息
J Mater Sci Mater Med. 2006 Apr;17(4):301-5. doi: 10.1007/s10856-006-8225-y.
OBJECTIVES
The release of metal ions (Al, Ag, Au, Ca, Cd, Co, Cr, Cu, Mg, Mo, Ni, Pd, Pt, Ti, and Zn) from the commercial gold/platinum (Au/Pt) dental alloy of declared composition was studied.
METHODS
Au/Pt was soaked in pH 6.0 phosphate buffer, 3.5 pH phosphate buffer and pH 3.5 mixture of lactic, formic and acetic acid, and incubated at 37 degrees C for 1, 2, 3, 4, 5, 6, 7, 14, 21, and 30 days. Six samples (n = 6) of every solution were prepared for any time period. Inductively coupled plasma atomic emission spectroscopy was used for analysis of the released elements.
RESULTS
Results demonstrated release of only Cr, Cu, Fe, and Zn from the tested Au/Pt dental alloy (ANOVA, p < 0.001 for buffer, time, and interaction, respectively); however, only Cu and Zn were declared.
CONCLUSIONS
The undeclared chromium from Au/Pt dental alloy, or some other element might be responsible for the contact allergy thus far attributed to the gold.
目的
研究宣称成分的商用金/铂（Au/Pt）牙科合金中金属离子（铝、银、金、钙、镉、钴、铬、铜、镁、钼、镍、钯、铂、钛和锌）的释放情况。
方法
将Au/Pt浸泡在pH 6.0的磷酸盐缓冲液、pH 3.5的磷酸盐缓冲液以及pH 3.5的乳酸、甲酸和乙酸混合液中，并在37℃下孵育1、2、3、4、5、6、7、14、21和30天。每个时间段制备每种溶液的六个样本（n = 6）。采用电感耦合等离子体原子发射光谱法分析释放的元素。
结果
结果表明，受试的Au/Pt牙科合金仅释放铬、铜、铁和锌（方差分析，缓冲液、时间和相互作用的p值分别<0.001）；然而，宣称的元素仅为铜和锌。
结论
Au/Pt牙科合金中未宣称的铬或其他某种元素可能是迄今为止归因于金的接触性过敏的原因。
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