Saliva Under Tooth Filling: Potential Issues and Solutions

Have you ever wondered what happens if saliva gets under a tooth filling? It can lead to several potential issues, including bacterial growth, filling failure, sensitivity, pain, and infection. This article will explore these problems in detail and discuss the steps you should take to address the issue.

Bacterial Growth and Decay

Saliva is not just a lubricant but also contains bacteria that can cause decay. When bacteria are trapped under a filling, they can lead to further decay of the tooth structure. This can be particularly harmful if the bacteria are not addressed promptly. For instance, if you consume foods rich in carbohydrates, the amylase enzyme in your saliva will break these carbs down into smaller pieces. This process can create an environment conducive to bacterial growth and ultimately result in cavities.

Filling Failure

The presence of moisture can compromise the bond between the filling material and the tooth, potentially causing the filling to become loose or fall out. This is a significant risk, especially if the filling is not sealed properly. Bonded filling materials are particularly susceptible to moisture contamination, which can lead to a weaker bond and subsequent failure of the filling.

Sensitivity and Pain

When the filling is not sealing properly due to saliva contamination, it can expose the tooth to temperature changes and pressure. This can result in sensitivity or pain. If you experience discomfort when eating or drinking, or if you notice that your tooth feels unusually sensitive, it is a sign that the filling may need attention.

Infection and Extensive Treatment

In severe cases, the bacteria can lead to an infection in the tooth, which might require more extensive treatment such as a root canal. This is particularly concerning because a simple cavity can evolve into a more serious condition if left untreated. It is crucial to consult a dentist if you suspect that saliva has gotten under a filling.

Consulting a Dentist

If you experience any of the issues mentioned above, it is important to consult a dentist. They can assess the situation and determine if the filling needs to be replaced or if other treatment is necessary. Regular dental check-ups can help prevent these problems, but if you notice any issues with your fillings, do not hesitate to seek professional advice.

Leaking Margins and Bonding Issues

Leaking margins under fillings are common, especially with bonded filling materials. Most of the time, the failure to bond is due to a small amount of moisture at the margin of the tooth and filling. Saliva gets under the filling and brings with it the bacteria and nutrients necessary for decay. Recurrent decay is the major reason for the failure of fillings.

Crowns and Supporting Tooth Structure

While crowns are generally more durable and less likely to fail, it is the supporting tooth structure that fails most often due to decay. This is another reason why regular dental check-ups are essential. By identifying and treating decay early, you can prevent more serious issues from arising.