You're in the chair, your cheek is numb, and your dentist says you'll need a permanent dental filling. It sounds final, like a problem solved for good. Then you get home and wonder what permanent promises, how long it lasts, and what happens if it chips five years from now. That confusion is normal, and
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How Long Do Tooth Fillings Last: A Complete Guide
A dental filling may last about 12.8 years for amalgam and 7.8 years for composite, based on median survival times from a major evidence review. Some fail sooner, while others remain useful for much longer. That spread is the important part of the answer. A filling doesn't have a printed expiration date. Its service life
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