Cheryl A. Siegel, DDS

Experienced Dental Care in Raleigh, NC

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4505 Fair Meadow Lane Suite 209 Raleigh, NC 27607

Sensitivity After a Filling or Crown?

If you’ve ever had dental pain after a filling or crown, you know how frustrating this situation can be. Did something go wrong? Is it normal? Rest assured, “post-operative sensitivity” is one of the most common complaints after dental work. Depending on the type, timing and severity of pain, it can indicate a few potential problems. Read on to catch a glimpse into how we interpret and treat patients with after-treatment pain!

Any time a dentist uses an instrument to modify the structure of a tooth, there is a chance this procedure will irritate the dental nerve. Typically, this pain is reversible and is a response of the tooth cells being temporarily injured during treatment. The discomfort is usually described as weak, dull, or cold sensitive and resolves on it’s own in about two weeks. If we are working close to the nerve of a tooth (such as with a deep cavity or certain fractures) there is a higher likelihood of causing irreversible irritation of the dental nerve. In this scenario, the tooth becomes hypersensitive as the inner tissue begins to die off. Patients usually describe this pain as a sharp, prolonged sensitivity to hot/cold foods. Over time, it transitions to a spontaneous pain and sensitivity to taping and chewing. In these instances, the best solution is to perform a root canal to clean out the necrotic tissue and relieve any infection that may be present.

By far the most common reason why a tooth will have post-operative pain is the filling/crown simply being too high. We check every single restoration we place with marking paper to make sure it doesn’t change the way your teeth come together. However, it is difficult to check your bite and make proper adjustments when you are numb so there are times when the bite is “off” after a restoration is placed. This problem is easily detected and fixed- we simply need to adjust your bite to remove areas that are interfering with your opposing teeth.

Beyond these types of nerve irritations, some fillings become sensitive due to the nature of the materials we use in dentistry. Many types of fillings and crown cements are chemically bonded to the tooth. This process involves painting on a resin “glue” and using an ultraviolet light to cure it to the tooth. The chemical change causes a small amount of shrinkage of the material which stresses the tooth. Patients usually feel this pain as sharp and sensitive to biting and chewing. Interestingly, we usually see this type of pain on smaller fillings, as they tend to have more walls made of natural teeth, and thus more surface area to place tension on.

Any patient complaint of pain after a procedure is taken very seriously and typically handled the same way. We will have you come in for an emergency appointment where we will take an X-ray (to see where the nerve is) and check the bite (to rule out a “high” restoration). We use this information to perform other tests to narrow down the possibilities to a correct diagnosis. Our ultimate goal at this visit is to get you out of pain and make a plan to protect the tooth long-term. If you would like to know more about the fillings we place and the risks/benefits of these procedures, please give our office a call.

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