Galvanism

By Dr.Swathi Pai on Thursday 1 May 2008 with 0 comments



Galvanic corrosion is an electrochemical reaction between dissimilar metals that have the potential to cause unpleasant and even painful biologic effects intraorally.

The highest current density of electromotive force between materials commonly used intraorally occurs between silver amalgam restorations and type III gold.

The first method of treatment is to place a rubber separator between the dissimilar restorations.

Other barriers used to separate the teeth include silver nitrate on the surface of the new restoration,

Coating the entire surface of the restoration with unfilled composite resin and curing,
and replacing the contact area with resin.

Galvanism can occur between a temporary aluminum crown and a gold crown.


Category: Conservative and Endodontics Notes

POST COMMENT

0 comments:

Post a Comment