Orthodontic brackets made from ion exchange strengthened glass
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United States of America Patent
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-
Nov 15, 1988
Issued Date -
N/A
app pub date -
Apr 10, 1987
filing date -
Oct 22, 1986
priority date (Note) -
Expired
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Abstract
Orthodontic brackets are made from ion exchange strengthened glass. In a preferred embodiment, the glass is a lithium alumino silicate srengthened with sodium ions.
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