Veneer ceramic for dental restorations and method for veneering dental restorations
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United States of America Patent
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Jun 7, 2016
Grant Date -
Jul 2, 2015
app pub date -
Jan 26, 2015
filing date -
Mar 6, 2007
priority date (Note) -
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Abstract
The invention is directed to starting glass compositions for veneer ceramics for dental restorations of framework ceramics comprising yttrium-stabilized zirconium dioxide. It is the object of the invention to make possible a translucent veneer ceramic which has high flexural strength as well as excellent adhesion to the framework ceramic of yttrium-stabilized zirconium dioxide. According to the invention, this object is met in a starting glass for veneer ceramics for dental restorations made of yttrium-stabilized zirconium dioxide which is produced from the following components:
- a) SiO2 58.0-74.0 percent by weightb) Al2O3 4.0-19.0 percent by weightc) Li2O 5.0-17.0 percent by weightd) Na2O 4.0-12.0 percent by weighte) ZrO2 0.5-6.0 percent by weight.
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