Conforming gingiva retraction compression cap and method of retracting tissue around a tooth
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United States of America Patent
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Feb 21, 2012
Grant Date -
Mar 19, 2009
app pub date -
Nov 12, 2008
filing date -
Apr 5, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
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