发明名称 CONFORMING GINGIVA RETRACTION COMPRESSION CAP AND METHOD OF RETRACTING TISSUE AROUND A TOOTH
摘要 <p>A rolled compression cap having a central bore. The rolled compression cap has adjacent layers that slide or telescope to conform to the prepared tooth and to apply more direct mechanical pressure to the interface between the prepared tooth and the gingiva. The gingiva or gum retracts from the tooth forming or widening a gingival sulcus. This improves the preparation of the tooth for taking an impression and fitting a crown or cap. In one embodiment, a rolled compression cap is pre-dosed or soaked with an astringent material or retraction agent. In another embodiment, the central bore of the rolled compression cap is filled with a paste-like or gel material containing an astringent or hemostatic agent.</p>
申请公布号 EP2352457(A1) 申请公布日期 2011.08.10
申请号 EP20090826405 申请日期 2009.11.09
申请人 CENTRIX, INC. 发明人 DISCKO, JOHN, J.;DRAGAN, WILLIAM, B.
分类号 A61C9/00 主分类号 A61C9/00
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