Tooth-colored fillings are recommended for all patients with cavities. Although silver and mercury have been used to fill cavities for more than 100 years, there are issues with both substances that lead us to discourage their use.
Metal fillings can weaken the structure of the tooth by expanding and contracting in response to heat and cold. They carry potential health concerns resulting from seepage of dangerous elements into the mouth and bloodstream. And, obviously, metal fillings negatively affect the overall look of your smile.
As a result of these concerns, tooth-colored fillings are by far the preferred option. They are much more durable than metal fillings, the resin-based composite carries no risk of harmful side effects and the composite can be mixed to a near perfect match of the shade of the surrounding tooth. Placing tooth-colored fillings is also easy; the composite is built up and light cured a little at a time, resulting in a long-lasting, invisible repair.