Tooth decay underneath crowns and bridges can occur when bacteria get underneath the restoration and break down the tooth structure.

Tooth decay under a dental crown or bridge happens for various reasons, such as inadequate tooth preparation, a poorly fitting restoration, or a failure to maintain proper oral hygiene.

Signs of Tooth Decay Under Dental Crown

1) Pain or Sensitivity

One of the most common and noticeable signs of potential tooth decay under a crown is the onset of pain or sensitivity.

Discomfort is typically most evident when eating or drinking hot, cold, or sweet items.

The presence of a crown does not completely insulate the tooth from sensations, so any persistent sensitivity or pain, especially if it’s a new development, should be taken seriously.

This could indicate that the decay has reached the nerves or the tooth pulp, potentially leading to more severe issues like infections or abscesses.

2) Swelling of Gums Around the Crown

Another important indicator is the condition of the gums surrounding the crowned tooth.

If you notice swelling, inflammation, or increased tenderness in these gums, it may be a sign of decay or an infection under the crown.

In some cases, this inflammation can also lead to bleeding gums.

These symptoms suggest that the issue has extended beyond the tooth and is impacting the surrounding gum tissues, potentially leading to periodontal problems if not addressed promptly.

3) Bad Breath or Bad Taste

Experiencing a persistent bad taste in your mouth or suffering from chronic bad breath, even with good oral hygiene habits, can be a red flag for decay under a crown.

Bacteria often cause these symptoms, and decaying material is trapped underneath the crown, which can be challenging to clean with regular brushing and flossing.

The presence of decay can create an environment conducive to bacterial growth, leading to these unpleasant symptoms.

4) Visible Discoloration or Changes

Visual changes around the margins of the crown, such as darkening or discolouration, can also indicate underlying decay.

These changes are often subtle and may not be immediately noticeable without close inspection.

If the seal between the crown and the tooth has been compromised, bacteria can infiltrate and cause decay, leading to these visible changes.

A professional dental examination is typically required to confirm and assess the extent of such decay.

5) Looseness or Changes in Crown Fit

Lastly, a significant sign of potential decay under a crown is a change in how the crown fits.

If the crown feels loose or you notice a shift in its positioning, the underlying tooth structure has likely been compromised by decay.

As the decay progresses, it can reduce the tooth’s size or change its shape, affecting how the crown adheres to the tooth.

Loosening increases the risk of the crown falling out and indicates that immediate dental attention is needed to address the decay and prevent further damage.

In all these cases, early detection and treatment are crucial. If you experience any of these symptoms, it’s essential to consult with a dentist as soon as possible.

A dentist will be able to accurately diagnose the issue and propose appropriate treatment options to preserve your oral health.

If left untreated, tooth decay underneath a crown or bridge can cause further damage to the tooth, leading to pain, infection, and potentially the need for a root canal or even tooth extraction.

To prevent this from happening, it is essential to practice good oral hygiene, including brushing and flossing regularly and visiting your nearest dentist for regular check-ups.

Your local dentist may also recommend X-rays or other diagnostic tests to monitor the tooth’s health and detect any signs of decay underneath the restoration.

How to treat tooth decay under dental crown?

If tooth decay is detected, the dentist may need to remove the restoration, clean out the decay, and place a new restoration.

In some cases, the decay may be too extensive to repair, and the tooth may need to be extracted and replaced with a dental implant or other restoration.

It is crucial to address any signs of tooth decay or other dental problems as soon as possible to prevent further damage and maintain good oral health.