Zitter H, Pitner P
Dtsch Zahnarztl Z. 1979 Nov;34(11):830-2.
Failure analysis reveals, that using different materials for expansion screws and fixing elements may cause severe galvanic corrosion or pitting corrosion. Such failures can easily be avoided by using only one alloy with good passivation characteristics instead of different alloys.
失效分析表明，对膨胀螺丝和固定元件使用不同材料可能会导致严重的电偶腐蚀或点蚀。通过仅使用一种具有良好钝化特性的合金而非不同合金，此类失效很容易避免。
