Oxidative pretreatment for improved adhesion

Details Oxidative pretreatment for improved adhesion Oxidative pretreatment for improved adhesion

A - Human Necessities

61

K

A61K 6/083 (2006.01) A61K 6/00 (2006.01) A61K 6/05 (2006.01)

Patent

CA 2112936

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° 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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