Surface gold alloys for an adhesion bridge modified by a laser

粘接桥的优点是它需要更少的牙齿准备。在选择坚固的合金或粘结剂新娘时，防止磨损是一个重要的考虑因素。采用45%的Ag-35Pd-20Cu合金(硬化后)和Co-Cr合金作为母合金进行实验，表面金合金的表面硬度是母合金的1/2~1/3，颜色稳定性增强。能承受咬合力的桥具有以下特点：只有一颗缺牙，金的厚度为100μm，总共需要的材料不到2 mm，以45%Ag-35Pd-20Cu45%的母合金为基材，经60μm以上的镀金处理，得到的激光具有更宽、更稳定的电性，使其具有立即氧化、保持一成不变的钝化状态，具有良好的色稳定性。但当钴铬合金被用作母合金时，随之而来的处于被动状态的厚厚的膜层实际上起到了抵消钴铬合金的颜色稳定性的作用。

The advantage of an adhesive bridge is it requires less tooth preparation. Preventing attrition is an important consideration in selecting a strong alloy or an adhesive bride. Therefore, after coating a strong mother alloy with gold plate, we used laser irradiation to further strengthen the surface.In experiments using a 45 %Ag-35Pd-20Cu alloy (after hardening) and a Co-Cr alloy as the mother alloy, the surface of the surface gold alloys was 1/2 - 1/3 as hard as the mother alloy and showed enhanced color stability.Bridges that could withstand the occlusal force possessed the following features : the bridge was for only one missing tooth, the gold plate had thickness of 100 μm, less than 2 mm of materials was required in total, and cobalt-chromium was used as the mother alloy.The cobalt-chromium alloy was the most suitable material for surface gold alloy adhesion bridges because it is strong and flexible.A surface layer gold alloy created from a mother alloy that is 45 %Ag-35Pd-20Cu and is coated with an over 60 μm gold plating and the laser irradiated has broader, more stable electric the mechanism to oxidize immediately and remain in an immutable passive state with good color-stability. But when cobalt chrome alloys are used as mother alloys, the ensuing heavy layer of membrane in a passive state actually serves to counteract the color-stability properties of cobalt chrome alloys.