Oxidative pretreatment for improved adhesion

Details Oxidative pretreatment for improved adhesion Oxidative pretreatment for improved adhesion

1993-02-05

1998-12-15

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

4332171, 433219, 523115, A61K 501

Patent

active

058498133

ABSTRACT:
This invention provides an adhesion promoter composition, comprising: a primer composition comprising an oxidant having an oxidation potential greater than the absolute value of the E.sup.O reductant of the adherend and optionally a solvent; and an adhesive composition.
This invention also provides a method of adhering a restorative material to an amalgam substrate, comprising the steps of: applying a primer composition and an adhesive to an amalgam substrate; hardening the adhesive; and optionally overcoating the adhesive with a restorative material.
These methods and materials have utility for applications that require adhesion to existing dental amalgams including, for example, the esthetic veneering of an amalgam restorative with a composite restorative material, and the repair or modification of old amalgam restorations with a fresh amalgam or with a composite restorative material.

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