发明名称 Oral vestibule plate for prophylactic purposes and early orthodontic treatment
摘要 An oral vestibule plate for prophylactic purposes includes a curved rigid shield. A cross piece is disposed on the center plane of the shield along the secant of its curvature. The cross piece comprises a wire bent to hold back the tip of the tongue thereby preventing damage otherwise caused by the tongue.
申请公布号 US4690640(A) 申请公布日期 1987.09.01
申请号 US19850798901 申请日期 1985.11.18
申请人 HINZ, RELF 发明人 HINZ, RELF
分类号 A61C7/12;(IPC1-7):A61C7/00 主分类号 A61C7/12
代理机构 代理人
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