Dentistry – Apparatus – Work support
Patent
1993-11-02
1995-11-14
O'Connor, Cary E.
Dentistry
Apparatus
Work support
433 57, 433 74, A61C 1100, A61C 1900
Patent
active
054661528
ABSTRACT:
A dental articulation apparatus for creating a pinned model of a patient's mandibular and maxillary dental arches. The apparatus permits the simultaneous relation and construction of pinned, segmental models of the maxillary and mandibular dental arches and allows the model, die, and articulation to be accomplished in a single pouring. The articulator includes recessed maxillary and mandibular tray support members each containing a plurality of indexing holes into which indexing pins can be inserted. A negative dental impression is then filled with a casting material, or alternatively, the support members are filled with a casting material, and the support members and negative impression material are then joined together such that the indexing pins protrude through and into the casting material. Once hardened, the casting material can be removed from the articulating device; the positioning pins allow then sectioned portions of the model to be replaced in the exact position that they were before the model was sectioned. Antirotation devices found on each tray support member prevent the model from turning on its pin axis thereby increasing stability and holding the model accurately in place.
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patent: 5403185 (1995-04-01), Presswood
Accu Bite Dental Supply Company
Knechtel Robert L.
O'Connor Cary E.
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