There’s a good chance you’ve had to get a dental filling in the past. After all, the CDC has found that 90% of Americans over age 20 have at least one cavity. Assuming that applies to you, your dentist likely filled the affected tooth. But have you wondered, “How long do fillings last?” The treatments don’t last forever, so it’s essential to know when they need to be re-examined. Well, your local dentist is here with the answer. Read on to learn how long fillings should last, when you should replace them, and how best to care for them.