Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1998-02-17
1999-11-02
Nutter, Nathan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
522 13, 522 14, 522 24, 522 28, 522 48, 522168, 522182, 522184, 522908, 526 65, 526 66, 526 78, 526 82, 526 83, 526217, 526227, 206219, 206220, 206568, C08F 246, C08F 200, B65D 2508
Patent
active
059771992
ABSTRACT:
The invention describes a dental composition, delivery system and method for making temporary crowns and bridges in which the composition comprises two free-radical polymerizable pastes, one a catalyst paste and the other a base paste, wherein the catalyst paste comprises at least one polymerizable monomer, at least one polymerization initiator which is a peroxide oxidizing agent, at least one first polymerization inhibitor and a filler, and wherein the base paste comprises at least one polymerizable monomer, at least one polymerization accelerator, at least one second polymerization inhibitor, at least one non-polymerizable plasticizer and a filler. These catalyst and base pastes are stored in a dual cartridge from which they can be dispensed with a dispenser, preferably in a 1:1 volume ratio, and can be mixed in a static mixer to form a moldable polymerizing material, which is then applied to a prepared area of one or more teeth in a patient's mouth to form a crown or a bridge. The materials produced in this way have improved handling properties and exhibit a reduced oxygen inhibited layer on the surface of the cured material.
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Nutter Nathan M.
The Kerr Corporation
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