Dentistry – Method or material for testing – treating – restoring – or... – Crown
Reexamination Certificate
2005-04-26
2005-04-26
O'Connor, Cary E. (Department: 3732)
Dentistry
Method or material for testing, treating, restoring, or...
Crown
C433S218000
Reexamination Certificate
active
06884073
ABSTRACT:
A temporary crown, and variants thereof, including temporary bite caps and temporary facings, comprised of a shaped provisional (crown forms, onlays, veneers and variants thereof) and a resin filler; and a kit of provisionals, resin and auxiliary materials. The provisional has at least a partial bite layer that is integral with two opposing neighbor walls, a lingual wall and a buccal wall which, together, define a cavity to accept a tooth stub, the resin filler and optionally, a temporary adhesive. The resin filler is initially plastic and fills a void between the provisional and the tooth stub. The provisional and resin filler are selected for compatibility and cooperative curability such that following a suitable curing step, the inner layer of the provisional and the resin filler are substantially bound to and integral with one another. The provisional may have apertures through the bite layer and slits through the neighbor walls. The apertures are located in the vicinity of the cusp tips in temporaries for molars and bicuspids and in the vicinity of the junction of the lingual and incisal planes on the lingual surface in temporaries for canines and incisors. A temporary bridge can be formed in situ from a plurality of temporaries.
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O'Connor Cary E.
Paul Smith Intellectual Property Law
Smith Paul
LandOfFree
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