Viscous neutralizing barrier

Details Viscous neutralizing barrier Viscous neutralizing barrier

1996-06-20

1998-03-03

O'Connor, Cary E.

Dentistry

Method or material for testing, treating, restoring, or...

By lining or coating

216 49, 216 51, A61C 500

Patent

active

057228337

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 of an etching composition. 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 composition 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 compositions 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.

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