发明名称 |
Device for extracting a dental appliance |
摘要 |
An instrument for removing a crown by generating a couple of forces between the occlusal surface of the stump of the tooth and the basal surface of the crown. The instrument has an indented intermediate portion and a working part extending from a tapered intermediate portion and a handle. When inserted in a groove formed at the occlusal part of the stump along a plane substantially parallel to the occlusal surface of the crown, the working portion enables, by a physical action, exertion of a couple of forces between the respective occlusal surfaces of the stump and the basal surface of the crown. The working part is rotatable integrally and correspondingly with a rotation of the handle. |
申请公布号 |
US6796797(B2) |
申请公布日期 |
2004.09.28 |
申请号 |
US20020182580 |
申请日期 |
2002.10.07 |
申请人 |
MULLER ALEXANDRE;MULLER WILLIAM |
发明人 |
MULLER ALEXANDRE;MULLER WILLIAM |
分类号 |
A61C3/16;(IPC1-7):A61C3/16 |
主分类号 |
A61C3/16 |
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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