Few dental woes are as disconcerting as discovering tooth decay under a previously fitted dental crown, particularly considering the initial investment in both time and dental costs.

The question “Can tooth decay under a crown be fixed?” resonates with many individuals who have faced this dental phenomenon or are concerned about the possibility. Fear not, for we’re about to explore this subject in detail.

First and foremost, understanding the nature of dental crowns and the causes of decay beneath them is crucial. Subsequently, we’ll discuss the likelihood of repairing such decay and the steps involved in the process.

Towards the end, we’ll also address preventive measures that can help you avoid this situation in the future.

The Anatomy of a Crown and Its Risks

A dental crown is a prosthetic device that fits over a damaged tooth, restoring its shape, size, strength, and appearance. Crowns fully encase the entire visible portion of a tooth above the gum line, once fitted by a dental professional.

Common reasons to get a crown include large fillings, root canal therapy, or protecting a weak tooth from fracturing.

However, despite its protective features, a crown doesn’t grant immunity from decay. Over time, the junction between the tooth and the crown might wear down, creating a gap where bacteria can seep in, leading to decay.

Or, if the crown wasn’t fitted appropriately, there might be microscopic gaps that allow bacteria to enter and produce decay. In either case, it is imperative to address decay under a crown promptly.

What is Tooth Decay Under a Crown?

Tooth decay, also call as dental caries or cavities, is the destruction of the tooth enamel caused by bacteria and acid. When left untreated, it can progress to the deeper layers of the tooth, causing pain, infection, and potentially leading to tooth loss.

When it occurs under a crown, it usually manifests as a dark spot on the surface near the gum line. If left unaddressed, it can progress to the adjacent tooth structure and eventually compromise the integrity of the crown itself.

Tooth Decay Under a Crown Symptoms

The following symptoms are indicative of tooth decay beneath a crown:

• Tooth sensitivity: If you experience inexplicable pain while eating or consuming hot and cold beverages, it could be because of decay under your crown.
• Foul smell or taste: A decaying tooth may release an unpleasant odor or give off a bad taste in your mouth.
• Darkening of the tooth: A decaying tooth may appear darker or discolored than others on examination.
• Loose crown: If you can move your crown when pressing it with a finger, it could be because of decay, causing the tooth to weaken and loosen its grip.

Can Tooth Decay Under a Crown be Fixed?

The good news is that yes, tooth decay under a crown can typically be fixed. The first step in fixing decay under a crown is to remove the damaged portion of the tooth and any decaying material.

The extent of the decay will determine if a filling, root canal therapy, or crown replacement is necessary.

Filling

If the decay is minimal and hasn’t reached the underlying tooth structure, a simple filling might be sufficient to repair the damage. In this case, the dentist will first remove any decaying material and then fill the space with a composite resin material, matching the color of your tooth.

Root Canal Therapy

If the decay has spread to the pulp or nerve of the tooth, a root canal therapy might be necessary. This involves removing the infected tissue and cleaning out the inside of the tooth before filling and sealing it. A crown will then be placed over the treated tooth to save it from further damage.

Crown Replacement

In more severe cases, the crown may need to be replaced entirely if it has been compromised by the decay. The dentist will remove the old crown and any decayed tissue before fitting a new crown over the tooth.

It’s worth noting that some crowns can be repaired instead of being replaced entirely. However, this depends on the material of the crown and the extent of the decay.

Can You Get a Cavity Under a Crown?

Yes, you can get a cavity under a crown. As mentioned earlier, the junction between the tooth and crown can weaken over time, creating openings where bacteria can enter and cause decay. In addition to this, if proper oral hygiene is not maintained or if the crown was fitted incorrectly, it increases the risk of developing cavities under a crown.

What happens when a Cavity is left Untreated?

Should a cavity or tooth decay remain untreated, one may start to observe notable effects. Additionally, your dentist may recommend undergoing further treatment.

Some effects may include:

Bad breath

In certain instances, cavities can lead to bad breath. This occurs when remnants of food become lodged between teeth, leading to plaque formation. Consequently, bacteria proliferate, resulting in tooth decay. Should decay beneath dental crowns commence to spread or flourish, it may manifest as bad breath.

Decay within your root canal

Should a cavity extend into the root of your tooth, there is a risk of developing complications that could impact your daily activities. Studies indicate that untreated decay within your root canal may result in conditions that could affect your daily routine.

• Pain
• Discomfort
• Infection
• Tooth loss

Moreover, the effects of decay within the root may influence your dietary habits and restrict the variety of foods you are able to consume. Furthermore, should the decay extend to the roots within your tooth structure, root canal therapy may become a necessary treatment.

Do dead teeth need to be removed?

Due to the increased brittleness of a dead tooth, a dentist may recommend fitting a crown over the tooth post-root canal treatment to enhance its strength and support. Extraction becomes necessary if a dead tooth is excessively damaged, underscoring the importance of seeking early treatment.

Preventing Future Incidents

Prevention is always the best course of action, so here are some steps you can take to avoid tooth decay under a crown:

• Do good oral hygiene, which includes brushing twice a day and flossing daily. Periodically dental check-ups and cleanings are equally important.
• Be diligent in observing any changes or discomfort around the area of a dental crown.
• Avoid habits that might damage your teeth or dental work, such as using your teeth to open packages or chewing on hard objects.
• Maintain a healthy diet, limited in sugary foods and drinks that can contribute to the development of cavities.

The Bottom Line

Tooth decay under a crown is a situation that needs to be addressed without delay. The success of treating such decay depends on factors like the extent of the tooth damage and the promptness of the intervention.

Remember, prevention is key, but if decay does occur, it can most often be treated effectively, thereby preserving your smile and oral health. If you’re concerned about dental crowns and decay, don’t hesitate to contact your dentist for advice catered to your specific circumstances.