Orthodontic appliance
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United States of America Patent
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-
Nov 11, 2003
Grant Date -
Nov 14, 2002
app pub date -
Feb 5, 2002
filing date -
Feb 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An orthodontic appliance comprising a main body for orthodontic treatment and a bonding base connected to the main body and capable of adhering to the teeth, wherein the main body and the bonding base each comprise calcium phosphate crystallizing glass. The calcium phosphate crystallizing glass preferably comprises CaO 10 to 60 wt %, P.sub.2 O.sub.5 25 to 85 wt %, Al.sub.2 O.sub.3 5 to 25 wt % and Li.sub.2 O 0.01 to 5 wt %, and has Vickers hardness Hv based on JIS Z2244 of 4.5 GPa or lower, and bending strength based on JIS R1601 of 100 MPa or higher.
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Family
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Cited Art Landscape
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