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1. 发明授权

US5833460A Controlled force crown and bridge remover 失效
标题翻译：控制力冠和桥移除器
公开(公告)号：US5833460A
公开(公告)日：1998-11-10
申请号：US833733
申请日：1997-04-09
申请人： Ronald A. Maeda
发明人： Ronald A. Maeda
IPC分类号： A61C3/16 , A61C3/14
CPC分类号： A61C3/16 , A61C3/162
摘要： A dental implement has two moderately flexible hemostat-like handles enabling an operator to apply safely controlled force through finger and thumb grips to bring coplanar bracing and grasping beaks toward one another for gentle removal of crowns or bridges from the mouth of a patient. The bracing beak bearing on the occlusal surface of an underlying tooth is readily modifiable in length or angular position to accommodate a variety of tooth sizes, locations and orientations, and the grasping beak is hollow ground to provide enhanced purchase on a gingival margin or supramarginal notch of a crown. A method of crown or bridge removal utilizing an improved, lightweight, controlled force dental implement employs an iterative sectioning of the crown or bridge during removal.
摘要翻译：牙科器具具有两个适度柔性的止血钳状把手，使得操作者能够通过手指和拇指把手施加安全控制的力，以使共面支撑和抓紧喙朝向彼此，从而缓和从患者口部移除牙冠或牙桥。在下面的牙齿的咬合面上的支撑喙轴承可以在长度或角度位置上容易地修改，以适应各种牙齿尺寸，位置和取向，并且抓握喙是中空的地面，以在牙龈边缘或超边缘切口的冠。使用改进的，轻量级的受控力牙齿器具的冠或桥移除方法在移除期间采用冠或桥的迭代切片。

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