Dentistry – Method or material for testing – treating – restoring – or... – By lining or coating
Patent
1995-03-21
1997-12-23
O'Connor, Cary E.
Dentistry
Method or material for testing, treating, restoring, or...
By lining or coating
433226, 106 35, 216 49, 216 51, 15665911, A61K 608
Patent
active
057001480
ABSTRACT:
A syringe-deliverable neutralizing barrier and methods for delivering a composition to form the neutralizing barrier. The neutralizing barrier is formed from a viscous caulking-type material delivered onto a tooth surface to define an etching area while protecting surrounding dental tissues during the application etching solution. The caulking-type material includes a matrix material and a neutralizing agent and has a viscosity such that it is syringe-deliverable yet will intimately and continuously adhere to the tooth surface without substantially flowing after being placed in a desired configuration. The neutralizing barrier is generally water soluble in order to facilitate quick and easy rinsing of the etching solution and neutralizing barrier in order to terminate the etching process, and preparatory to subsequent bonding of a porcelain crown or resinous composite to the tooth or porcelain prosthesis. The neutralizing barrier is particularly useful with etching solutions containing hydrofluoric acid, but can be used for other relatively strong tooth etchants.
REFERENCES:
patent: 4443197 (1984-04-01), Fusayama et al.
patent: 4719149 (1988-01-01), Aasen et al.
patent: 5385728 (1995-01-01), Suh
patent: 5498643 (1996-03-01), Antonucci et al.
Fischer Dan E.
Jensen Steven D.
O'Connor Cary E.
Ultradent Products? Inc.
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