Pressable glass ceramic, method for the fabrication thereof, and method for the fabrication of a dental restoration using such glass ceramic
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United States of America Patent
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Mar 16, 2004
Grant Date -
Dec 26, 2002
app pub date -
Apr 19, 2002
filing date -
Apr 20, 2001
priority date (Note) -
Expired
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Abstract
A pressable glass ceramic which contains lithium silicate glass and leucite is disclosed. Also, disclosed is the combination of leucite and a lithium silicate glass to stably increase the coefficients of thermal expansion of the resulting glass composition, and the preparation of leucite suitable for addition to the glass composition. Also disclosed are methods for fabricating glass ceramic and dental products from the pressable glass ceramic.
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