发明名称 Dental crown remover
摘要 A dental crown (cap) remover with unique crown separating and removing means is adaptable to a wide variety of crown sizes and configurations and does not place compressive or axial forces on the underlying tooth or its supporting processes (alvoelar bone and periodontal fibers). The crown remover has a grasping and tightening mechanism that allows the dentist operator to firmly seat the crown remover on the crown to be removed, and has an elliptical separating mechanism that inserts in a precut groove in the crown and forces separation of the halves of the crown, increasing the circumferential dimension breaking the cementing medium and loosening the crown from the underlying tooth, providing for ease of separation of the crown from the tooth.
申请公布号 US4594069(A) 申请公布日期 1986.06.10
申请号 US19840658527 申请日期 1984.10.09
申请人 THOMPSON, BENEDICT D. 发明人 THOMPSON, BENEDICT D.
分类号 A61C3/16;(IPC1-7):A61C3/00 主分类号 A61C3/16
代理机构 代理人
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