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US 4,396,375 AGranted
Dental packing tool for gingival retraction cord
OwnerKenneth W. Goresinventor
Life of this patent
Estimating the term…
Abstract
This instrument is a dental hand piece having an angularly disposed working end provided with an easily rotated broad-faced but thin tamping or packing tool for forcing packing material such as cord or yarn strands into the sulcus or gingival crevice between a tooth and the crest of the gingival or gum tissue surrounding the tooth.
Claims5
A packing tool for dentists' use in packing a flexible cord or the like about a person's tooth below the gumline in the subgingival crevices, comprising:
- a manually manipulable rigid handpiece;
- a blunt end packing blade having greater width than thickness and including a longitudinally extending stem;
- and
- in association with said packing blade stem at an end of said handpiece, means for receiving and retaining said stem for free rotation of said blade about the axis of said shank as the same is moved in a progressively advancing, tamping motion at a person's gumline, with a broad surface of the blade in close juxtaposition to a tooth in such person's mouth.
1 more element
A packing tool for dentists' use in packing a flexible cord or the like about a person's tooth below the gumline comprising:
- a manually manipulable rigid handpiece having an angularly disposed shank at its working end provided with a friction-free socket;
- a double-ended pin having one end journaled in said socket and its other end extending in line therewith;
- a blunt-end packing blade having greater width than thickness and including a longitudinally aligned stem;
- said socket being adapted for receiving and retaining said stem for rotation of said blade about the axis of said socket as the same is moved in a progressively advancing, tamping motion at a person's gumlin, with a broad surface of the blade in close juxtaposition to a tooth in a person's mouth.
1 more element
Dependencies are inferred from the claim text.