Dental glass and dental composition
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United States of America Patent
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Dec 15, 2020
Grant Date -
May 23, 2019
app pub date -
Jul 4, 2017
filing date -
Jul 15, 2016
priority date (Note) -
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Abstract
A dental glass includes: phosphorus; sodium and/or potassium; and calcium, wherein the dental glass contains, in terms of oxide, phosphorus (P2O5) by greater than or equal to 40% by mass and less than or equal to 70% by mass, sodium and/or potassium (Na2O, K2O) by greater than or equal to 20% by mass and less than or equal to 40% by mass, and calcium (CaO) by greater than or equal to 1% by mass and less than or equal to 20% by mass, and wherein the dental glass does not substantially contain silicon and aluminum.
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