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发明公开
CN103080033A 针对由钇稳定二氧化锆制成的牙科修复体的饰面陶瓷以及其涂覆方法 有权

针对由钇稳定二氧化锆制成的牙科修复体的饰面陶瓷以及其涂覆方法
摘要：
本发明涉及针对牙科修复体的饰面陶瓷，其中，支架陶瓷由钇稳定二氧化锆制成。本发明基于以下任务，即，研发针对由钇稳定二氧化锆制成的牙科修复体的基于二硅酸锂的半透明饰面陶瓷以及用于施布该饰面陶瓷的方法。该饰面陶瓷应该不含有白榴石、偏硅酸锂或β-锂辉石并且具有非常良好的化学稳定性、对二氧化锆的高附着强度以及良好的表面品质。根据本发明，在钇稳定二氧化锆上的饰面陶瓷的情况下通过如下方式来解决该任务，即，该饰面陶瓷由以下组分制成：a）SiO2 55.0-72.5质量%；b）Nb2O5 6.0-19.8质量%；c）B2O3 1.0-9.0质量%；d）Al2O3 1.2-6.0质量%；e）Li2O 5.0-16.5质量%；f）Na2O 1.4-11.0质量%；g）ZrO2 0.5-4.0质量%，并且在饰面陶瓷的表面上设有在结晶期间构造的薄玻璃层。
摘要（英）：

The invention relates to veneering ceramics for dental restorations, wherein the framework ceramic is made of yttrium-stabilized zirconium dioxide. The aim of the invention is to develop a translucent veneering ceramic based on lithium disilicate and a method for applying the veneering ceramic for dental restorations made of yttrium-stabilized zirconium dioxide. Said veneering ceramic should not contain any leucite, lithium metasilicate, or ss-spodumene and should have very good chemical resistance, high adhesive strength with respect to zirconium dioxide, and good surface quality. According to the invention, said aim is achieved for a veneering ceramic on yttrium-stabilized zirconium dioxide in that the veneering ceramic is produced from the following components: a) SiO2 55.0 - 72.5 mass percent; b) Nb2O5 6.0 - 19.8 mass percent; c) B2O3 1.0 - 9.0 mass percent; d) Al2O3 1.2 - 6.0 mass percent; e) Li2O 5.0 - 16.5 mass percent; f) Na2O 1.4 - 11.0 mass percent; and g) ZrO2 0.5 - 4.0 mass percent, and is provided with a thin glass layer formed during the crystallization on the surface of the veneering ceramic.

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