Arvidson K, Wróblewski R
Scand J Dent Res. 1978 May;86(3):200-5. doi: 10.1111/j.1600-0722.1978.tb01932.x.
Previous investigations have shown htat corrosion and other electrochemical processes occure when different alloys or metals are found together in the same mouth. In the present report, when teeth were restored using non-noble metallic posts, the metals diffused out to surrounding hard and soft connective tissues. The material consisted of extracted teeth with screw posts and surrounding discolored connective tissues. The screwposts had been cemented to the teeth 3--10 years earlier. The distribution of metal ions was determined by means of energy-dispersive X-ray microanalysis. Copper and zinc were found in both hard and soft tissues. Relatively high concentrations of copper ions were identified in areas of the teeth with blue-green discolorations. Zinc ions were detected in the dentin; they most probably originated from the screwposts and the cement, but zinc is also found in normal human dentin. Copper, zinc, silver and iron were found in the dark discolorations of the gingiva adjacent to the extracted teeth.
先前的研究表明，当不同的合金或金属在同一口腔中同时存在时，会发生腐蚀和其他电化学过程。在本报告中，当使用非贵金属桩修复牙齿时，金属会扩散到周围的硬组织和软结缔组织中。材料包括带有螺纹桩的拔除牙齿以及周围变色的结缔组织。这些螺纹桩在3至10年前就已粘结到牙齿上。通过能量色散X射线微分析确定金属离子的分布。在硬组织和软组织中均发现了铜和锌。在牙齿出现蓝绿色变色的区域中发现了相对较高浓度的铜离子。在牙本质中检测到锌离子；它们很可能源自螺纹桩和粘固剂，但在正常人的牙本质中也能发现锌。在拔除牙齿相邻的牙龈深色变色区域中发现了铜、锌、银和铁。
