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上海齿科材料厂经多年探索并在各方的协助配合下,按照国际标准牙科汞用合金ISO、1599—1986(E)研制成Ag—43型高铜白合金精,其与常规白合金精的不同点是铜含量超过6％,(国际上统称为高铜产品),凝固后的膨胀系数为6～7μm/cm,同常规白合金精一样,能与牙本质密切结合,不会产生微隙漏,不会导致继发龋,既节银又实用,实为一种良好的永久性补牙材料。经全国17个省的27个市、2个县的医疗单位临床试用后,专家们一致认为该产品具有
After years of exploration and cooperation with all parties, Shanghai Dental Materials Factory developed the Ag-43 high-copper white alloy concentrate according to the international standard ISO, 1599-1986 (E) for dental mercury, which is compatible with the conventional white gold concentrate The difference is the copper content of more than 6%, (internationally known as high-copper products), the coefficient of expansion after solidification of 6 ~ 7μm / cm, with conventional white gold like, can be closely combined with dentin, will not produce micro Gap leakage, will not lead to secondary caries, both section of silver and practical, in fact, a good permanent dental filling material. After clinical trials by medical units in 27 cities and 2 counties in 17 provinces of China, experts agree that the product has