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How Long do Fillings Last?

| Station Square Dental

You have your first ever cavity and are planning on getting a filling in just a couple of weeks from now. But since this is the very first time you’ve had dental work done, you’re also wondering how long the treatment will last.

Years, But Not for Forever

The goal of a high quality dental filling is to remove decay, repair the tooth, and last for several years. Depending on what it’s made from, most fillings last anywhere from 5-15 years, depending on a number of different factors such as the type of material used.

There’s no guarantee that you’ll have a filling that lasts 15 years, but with good care, maintenance, and lifestyle choices you can hope to get the most time out of it as possible.

 Risks to Fillings

What can cause a filling to fail early on and need to be replaced with another one? Here are a few things you might be doing, that could be a risk to your new restoration:

Not flossing

Your filling has a tight seal with the tooth around it, but if new bacteria, sugars, or acids have time to collect around it on a routine basis, a new cavity can form under your new restoration.

Grinding and clenching your teeth

A filling doesn’t respond to pressure the exact same way as your teeth does. Even teeth can chip and wear down if you clench too much. If bruxism (grinding) is a known habit, invest in a protective night guard to prevent your new restoration from breaking too.


Gradually, all fillings wear out. It’s best to monitor your restorations closely, so that they can be changed out before leakage allows new decay to develop around them. We recommend that our patients have X-rays taken depending on clinical need, this can range from 6 months to 2 years to monitor their oral health.

Call Station Square Dental today for answers to your other questions about dental fillings.