I would like to change all my silver fillings to tooth colored fillings; what are the benefits?
There is no real harm in leaving your silver (amalgam) fillings in your teeth, although the tooth colored (composite) fillings are much more esthetically pleasing. Dentists have been using silver amalgam fillings for over a century. Of course you would want to change any filling that is cracked, breaking down around the edges, or has decay around or under them.