Method of making dental restorations
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United States of America Patent
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Issued Date -
Nov 25, 2004
app pub date -
Feb 20, 2003
filing date -
Jul 2, 1999
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of making a dental restoration comprising forming a ceramic core or an alloy framework; pressing a porcelain onto the core or framework, wherein the porcelain comprises an amorphous glass phase with a maturing temperature less than about 850.degree. C., wherein the amorphous glass phase, in one embodiment, comprises:1 Component Amount (wt. %) SiO.sub.2 55-75 B.sub.2O.sub.3 2.6-6 Al.sub.2O.sub.3 3-4.9 ZnO 0-3 CaO 0-3 MgO 0.5-3 ZrO.sub.2 0-3 BaO 0-2 Li.sub.2O 0.8-2 K.sub.2O 0-6.5 Na.sub.2O 2-15 Tb.sub.4O.sub.7 0-1 TiO.sub.2 0-3 CeO.sub.2 0-1 F 0-2
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Family
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Cited Art Landscape
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