发明名称 |
Plastic orthodontic appliance, plastic appliance mechanical bonding base and method of making same |
摘要 |
This invention is directed to a plastic orthodontic appliance having projecting structure extending outwardly from a bonding base. The projecting structure includes a broadened outer extremity and undercuts proximate the outer extremity which form mechanical bonds with a bonding adhesive. In one application, a plurality of appliances in the form of slotted brackets is provided for cooperating with an archwire to apply corrective forces to a patient's teeth on which the brackets are mounted. Another aspect of the invention concerns a method of making plastic orthodontic appliances suitable for mechanical bonding. The method includes molding a plastic orthodontic appliance having undeformed projecting structure and subsequently softening and compressing the outer extremity of the projecting structure to form undercuts. In a preferred embodiment, the projecting structure is a plurality of posts.
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申请公布号 |
US5829973(A) |
申请公布日期 |
1998.11.03 |
申请号 |
US19970859484 |
申请日期 |
1997.05.20 |
申请人 |
ORMCO CORPORATION |
发明人 |
ANDREIKO, CRAIG A.;LUDWIG, DAVID L. |
分类号 |
A61C7/14;A61C7/16;A61K6/087;(IPC1-7):A61C7/16 |
主分类号 |
A61C7/14 |
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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