Porcelain compositions for low expansion all-porcelain cores and alloys
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United States of America Patent
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Apr 29, 2003
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N/A
app pub date -
Jun 30, 2000
filing date -
Jul 2, 1999
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Abstract
A dental porcelain composition comprises an amorphous glass phase with a maturing temperature less than about 850.degree. C., wherein the amorphous glass phase, in one embodiment, comprises:
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