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2. 发明申请

WO1998016168A1 RETRIEVABLE CEMENTED PROSTHODONTIC APPARATUS WITH HYDROSTATIC PRESSURE RELIEVED ABUTMENT POST 审中-公开
标题翻译：具有静压压力消除功能的可检测的固定式前置装置
公开(公告)号：WO1998016168A1
公开(公告)日：1998-04-23
申请号：PCT/US1997018753
申请日：1997-10-14
申请人： IMPLANT SYSTEMS, INC. , GITTLEMAN, Neal, B.
发明人： IMPLANT SYSTEMS, INC.
IPC分类号： A61C03/16
CPC分类号： A61C8/0089 , A61C3/16 , A61C3/162 , A61C8/005 , A61C8/0057 , A61C8/0059 , A61C8/0065 , A61C8/0069
摘要： A method and apparatus for setting and removing a cemented, retrievable prosthodontic appliance by means of a levering instrument (21) applied to the gap between two substantially parallel surfaces (19, 20), the first surface being a flat-topped ledge of a window (22) on the lingual aspect of a dental prosthesis (1) and the scond surface being at least one opposed step or ledge on an artificial implant abutment (60). A conformal, removable plug (30, 50) of durable polymer fills and is securable within yet removable from the window in the completed restoration. A narrow channel (73, 74) is provided in a dental abutment post to allow excess dental cement to flow out of the interstitial space between the dental abutment (34) and the overlying prosthesis (33). During the seating of the prosthesis (33) the excess dental cement is channeled to and extruded from a preferred collection point for easy removal. Hydrostatic pressure and trapped gasses that would tend to lift the prosthesis into a nonfitting position or form a weakened cemented bond of uneven thickness are prevented by this apparatus and method to relieve pressure.
摘要翻译：一种用于通过施加到两个基本上平行的表面（19,20）之间的间隙的杠杆装置（21）来设置和移除粘结的可回收的修复器具的方法和装置，所述第一表面是窗口的平顶凸缘（22）关于牙科假体（1）的舌侧，并且所述表面是人造植入物邻接（60）上的至少一个相对的台阶或凸缘。耐久性聚合物的适形可拆卸塞子（30,50）填充并且在完成的修复体中可从窗户中移除。在牙科接合柱中设置有狭窄的通道（73,74），以允许多余的牙科粘固剂从牙基台（34）和上覆假体（33）之间的间隙空间流出。在假体（33）的座位期间，多余的牙科粘固剂被引导并优选地从优选的收集点挤出以便于移除。通过这种减轻压力的装置和方法可以防止倾向于将假体提升到非拟合位置或形成不均匀厚度的弱化胶合粘合剂的静水压力和截留气体。

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