发明名称 |
Glass orthodontic bracket. |
摘要 |
<p>An orthodontic bracket is made of a partially crystallised glass material. The orthodontic bracket has a thin compressive outer crystalline layer (38). A method of making the bracket comprises forming the bracket from the glass material and subjecting it to a heat treatment to cause crystallisation of the outer layer.</p> |
申请公布号 |
EP0399787(A2) |
申请公布日期 |
1990.11.28 |
申请号 |
EP19900305553 |
申请日期 |
1990.05.22 |
申请人 |
ORMCO CORPORATION |
发明人 |
FARZIN-NIA, FARROKH;PETTICREW, RICHARD WILLIAM |
分类号 |
A61C7/00;A61C7/12;A61K6/06;C03C3/083;C03C3/085;C03C10/00 |
主分类号 |
A61C7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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