Lemaitre L, Van Petegem A P, D'Hauwers R
Rev Belge Med Dent. 1978;33(1):21-34.
A number of dental amalgam products have been compared in the context of a thesis. Four products, each of them possessing different characteristics, have been selected. Six Eighty Amalgam Alloy is a conventional product; Fluor Alloy contains a quantity of SnF2; Amalcap non gamma2 belongs to the group of the so-called non gamma2-alloys; Indiloy is spherical and contains indium. Each product was subjected to a series of tests and investigations: structure, dimensional changes after condensation, compressive strength, behaviour during a relaxation-test and resistance to corrosion. Indiloy was the product with the most interesting structure and it could be ascertained the mercury especially attacked silver and indium of the original alloy. Thus a sort of matrix is formed. The measuring of the dimensional changes was done by introducing a new method. Fluor Alloy and Indiloy present a behaviour that differs a lot from the expected one: at first a contraction followed by a more important expansion. A relaxation-test is an alternative to the creep-test and the connection between both is demonstrated. Combining the results of the resistances to the compressive forces with those of the relaxation-tests shows Indiloy possesses superior mechanical properties while those of Six Eighty Amalgam Alloy are rather inferior. A final series of tests concerns the resistance to corrosion. Amalcap non gamma2 and Indiloy have a much greater rough resistance to corrosion than the two other ones.
在一篇论文中对多种牙科汞合金产品进行了比较。已挑选出四种产品,每种产品都具有不同特性。680汞合金是一种传统产品;氟合金含有一定量的氟化亚锡;非γ2型Amalcap属于所谓的非γ2合金组;Indiloy是球形的且含有铟。每种产品都进行了一系列测试和研究:结构、压实后的尺寸变化、抗压强度、松弛试验中的表现以及耐腐蚀性。Indiloy是结构最有趣的产品,可以确定汞特别侵蚀了原始合金中的银和铟。因此形成了一种基质。尺寸变化的测量采用了一种新方法。氟合金和Indiloy呈现出与预期大不相同的表现:起初是收缩,随后是更明显的膨胀。松弛试验是蠕变试验的一种替代方法,并且证明了两者之间的联系。将抗压强度结果与松弛试验结果相结合表明,Indiloy具有优异的机械性能,而680汞合金的性能则相当差。最后一系列测试涉及耐腐蚀性。非γ2型Amalcap和Indiloy的耐腐蚀性比其他两种产品强得多。