Dental Tips Blog

Jul
13

Are Metal Fillings Bad for Teeth?

Posted in Fillings

Dentists have used amalgam dental restorations which contain silver and other metals to fill teeth for decades.

Metal fillings have been in use so long because they are cost-effective and easy to place. In fact, you can still find some dental offices that offer them.

Such places are becoming scarce, however, for the following reasons:

Amalgam Fillings Contain Mercury

Mercury is an essential part of metal fillings because it’s what enables the filling to be shaped and placed into a tooth before hardening. This mercury stays in place and shouldn’t make you sick. But some people still worry about having a potentially dangerous substance in their mouths.

Metal Fillings Stress Tooth Enamel

Although amalgam fillings last a long time, they can put a lot of wear on teeth.

Metals expand and contract with temperature changes. A metal filling gets slightly larger in warm temperatures and shrinks slightly in cool ones. Your mouth regular experiences extremes in temperature change when you take in hot and cold foods.

The problem with this is that your teeth can’t expand and contract as fast as metals do. With time, the more rapid motions of a metal filling can weaken the enamel and cause tiny cracks that lead to sensitivity, fracture, and cavities.

Silver Doesn’t Look the Best on Teeth

Metal fillings are also falling out of favor just because people don’t like the look of them especially when there are more subtle options like white composite fillings. A tooth-colored filling is much more natural looking and is especially useful for making small cosmetic smile enhancements.

Ask your dentist about which restorative options available in your area are right for your smile.

Posted on behalf of:
Dental Care Center At Kennestone
129 Marble Mill Rd NW
Marietta, GA 30060
(770) 424-4565

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