Can You Develop a Cavity Under a Filling?

can you get a cavity under a filling

Cavities occur when harmful bacteria undermine the strength of the tooth and cause decay. Dental fillings are an effective way to seal these weak points, often without the need for a root canal. But what happens if a tooth with a filling is neglected and begins to decay again? Are you safe from any further damage to the tooth, or is there cause for concern? Can you develop a cavity under a filling?

Cavities Can Happen Anywhere – Even Under Fillings

While fillings are in place to help fill a cavity and protect your tooth from even further decay, the fact is that cavities can occur anywhere – even under fillings. This is especially true in older fillings, which may need replacing. Here are a few of the leading causes of cavities under fillings:

Damage to the Filling

Fillings should be replaced at some point in their lifecycle. While many people believe a filling is a permanent addition to the tooth, the reality is that they are prone to wear and tear like a healthy tooth, and require regular checks by your dentist. If a filling is cracked or damaged, this may create a space where food and bacteria can get into the tooth, which in turn could cause a new cavity to form under the filling.

is it possible to get a cavity under a fillingImproper Seal on the Tooth

Similar to a cracked or damaged filling, an inadequate seal is another leading cause of a cavity under fillings. While advances in dental technology have given dentists the best possible chance of creating a reliable seal around a filling, the process still requires extreme skill and precision. The perfect seal, therefore, can never exist, meaning any cavity filling is liable to penetration by bacteria or food particles. Loose seals can be made worse by grinding of teeth during sleep.

The Importance of Regular Care and Check-Ups

Because of imperfect seals and the danger of cracks, practicing the proper oral health techniques is essential to help minimize the risk of cavities forming under existing fillings. By ensuring that you regularly brush and floss, you take a big step in preventing the build-up of harmful bacteria under your fillings.

Regular cleanings and check-ups with your dentist is another essential part in ensuring that cavities don’t develop under existing fillings. While badly-damaged or degraded fillings may appear obvious to even the untrained eye, in many cases, it can be tough to spot an imperfect seal or damaged filling. Working with your dentist, you can make sure your mouth stays in tip-top shape.

Make Dental Care as Painless as Possible – Call FL Dental Solutions Now

A cavity might be painful but visiting your dentist shouldn’t have to be. At Florida Dental Solutions, we always strive to make dental visits a care-free experience. No matter what your dental problem, we’re here to help. If you are experiencing pain under an existing filling, give us a call today at (954) 362-4102 or email our office at to schedule a consultation.

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