Can a Cavity Under a Crown Be Treated?

How Does a Cavity Form Under a Crown?

Dental crowns are designed to protect damaged teeth and keep them strong for years. But here’s something many patients don’t realize: the tooth underneath a crown can still develop a cavity. A crown covers most of the tooth, but the area where the crown meets the gumline is still vulnerable. If plaque builds up there, bacteria can sneak in and start breaking down the natural tooth structure underneath.

It doesn’t happen overnight, but over time, decay can work its way under the crown and cause problems that aren’t always easy to see at first.

Signs Something Might Be Wrong

Because the crown covers the tooth, cavities underneath aren’t always obvious. Still, some red flags can include:

Sensitivity to hot or cold

Pain when chewing

A dark line near the edge of the crown

Swelling or discomfort around the gums

If you notice any of these changes, it’s a good idea to have your crown checked sooner rather than later.

Yes, a Cavity Under a Crown Can Be Treated

The good news is that cavities under crowns are treatable. In many cases, the crown will need to be removed so Dr. Jeff Davis can clean out the decay and restore the tooth. Once the tooth is healthy again, a new crown is often placed for protection.

If the decay has reached the pulp—the inner layer of the tooth where the nerves live—a root canal may also be necessary. Sometimes this can be done by carefully creating an opening through the existing crown and sealing it afterward. Other times, especially if the crown is already worn or compromised, replacing it entirely is the better option. Dr. Davis will explain which approach makes the most sense for your situation.

Preventing Cavities Under Crowns

The best way to avoid this issue is with consistent home care and regular dental visits. Brushing, flossing, and keeping up with cleanings all help prevent bacteria from sneaking in where the crown meets the gumline. Think of it as teamwork—you take care of things at home, and Dr. Davis and the team keep a close eye on your crowns during checkups.

Dental Crown Care at Family Dentistry of Bedford in Bedford, TX

If you’ve noticed sensitivity, pain, or changes around a crown, scheduling a visit is the best next step. At Family Dentistry of Bedford, Dr. Jeff Davis will evaluate the tooth, explain your options clearly, and provide the treatment needed to restore comfort and protect your smile. Call our Bedford office or schedule an appointment online to get your crown—and your peace of mind—back on track.

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Categorized in: Dental Tips, Restorative Dentistry