近些年来,一些经济发达国家的有关部门建议,口腔内使用的金属材料应该是贵金属,如:金合金,金加白金合金、金钯合金、金铂合金等。为什么要这样建议呢? 我们知道,口腔中常用的非贵金属镍、铬、钡、镉等,由于具有良好的机械性能和物理性能,近半个世纪以来广泛用于补牙、镶牙、然而,最新的科研结果表明,这些金属材料在口腔特殊的环境中长期使用会引起肿瘤或导致中毒。 据国外有关文献报道,科研人员经过长达8年的研究后发现,非 In recent years, the relevant departments of some economically developed countries have suggested that the metal materials used in oral cavity should be precious metals, such as gold alloys, gold plus platinum alloys, gold palladium alloys, gold platinum alloys, and the like. Why do we recommend this? We know that the common oral non-precious metals nickel, chromium, barium, cadmium, due to its good mechanical properties and physical properties, nearly half a century has been widely used in dental replacement, denture, however, the latest Scientific research shows that the long-term use of these metal materials in oral special circumstances can cause tumors or lead to poisoning. According to foreign literature reports, researchers after eight years of research found that non