[Experimental use of dentin bonding agents and a cavity varnish to reduce marginal microleakage in high copper amalgam restorations].

Abstract

The effects of a cavity varnish and two bonding agents on marginal microleakage at the interface of amalgam restorations and cavity walls in extracted teeth is investigated with a dye penetration technique. Marginal microleakage associated with amalgam restorations can be greatly reduced by paintings a bonding agent on the inner wall of the cavity.