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Is it Normal for Teeth to Feel Sensitive After a Filling?

When it comes to dental procedures, one common concern that patients have is sensitivity after getting a filling. It is essential to understand what to expect after a filling and whether the sensitivity you experience is normal. 

In this article, we will explore the topic and provide you with comprehensive information and insights. Let’s dive in and address this common post-filling issue.

Many individuals experience tooth sensitivity after undergoing a dental filling procedure. This sensitivity is generally considered normal and is caused by several factors, including the procedure itself, the materials used, and the reaction of the tooth. However, it is crucial to differentiate between normal sensitivity and potential complications.

The Causes of Sensitivity After a Filling

1. Changes in Tooth Structure

After receiving a filling, it is common for the tooth structure to undergo some changes. The dentist removes decayed or damaged tooth material and replaces it with a filling material, such as composite resin or amalgam. These materials may have different thermal properties than natural tooth structure, leading to increased sensitivity.

2. Nerve Irritation

During the filling procedure, the dentist needs to clean out the decayed portion of the tooth, which may result in minor irritation to the tooth’s nerves. This can lead to temporary sensitivity, which should subside within a few days or weeks.

3. Bite Adjustment

Sometimes, after a filling, the bite may need to be adjusted to ensure proper alignment of the teeth. If the filling material is interfering with the bite, it can cause sensitivity when chewing or biting down. Your dentist may make necessary adjustments to alleviate this issue.

4. Pre-existing Tooth Sensitivity

If you had sensitive teeth before the filling, it is possible that the sensitivity may persist or worsen temporarily after the procedure. This sensitivity is not directly related to the filling itself but rather the underlying condition of your teeth.

How Long Does the Sensitivity Last?

The duration of sensitivity after a filling can vary from person to person. In most cases, the sensitivity subsides within a few days to a couple of weeks. However, if the sensitivity persists for an extended period or worsens over time, it is advisable to consult your dentist for a follow-up appointment.

Managing and Reducing Sensitivity After a Dental Filling

1. Over-the-counter Pain Relievers

Usage and Benefits

  • These can help manage pain and reduce inflammation.
  • Common OTC pain relievers include ibuprofen and acetaminophen.


  • Always follow the recommended dosage and be wary of potential interactions with other medications.
  • Continuous usage for extended periods should be avoided unless advised by a healthcare professional.
  • Always consult with a dentist or doctor before starting any medication to ensure it’s safe and appropriate.

2. Desensitizing Toothpaste

Usage and Benefits

  • Contains compounds that help block transmission of sensation from the tooth surface to the nerve.
  • Regular use can help reduce sensitivity over time.


  • Brush with it as you would with regular toothpaste.
  • For extra relief, a small amount can be spread over the sensitive tooth for a few minutes before rinsing.

3. Saltwater Rinses

Usage and Benefits

  • Acts as a natural antiseptic to help reduce inflammation.
  • Can cleanse the area, aiding in pain relief.
  • Preparation and Application
  • Dissolve half a teaspoon of salt in 8 ounces of warm water.
  • Swish the solution in the mouth for 30 seconds before spitting it out. Avoid swallowing.

4. Avoiding Extreme Temperature Foods/beverages


Extreme temperatures can exacerbate sensitivity, especially soon after a dental procedure.


  • Wait for hot beverages or foods to cool down to a warm temperature before consuming.
  • Avoid very cold drinks or use a straw to minimize contact with the sensitive tooth.
  • Steer clear of icy treats or cold desserts for a few days post-filling.

5. Gentle brushing and flossing around the filled area


Aggressive brushing can further irritate a sensitive tooth and the surrounding gums.


  • Use a soft-bristled toothbrush.
  • Brush in gentle, circular motions.
  • When flossing, be gentle around the filled area to avoid putting too much pressure on the tooth.


Experiencing sensitivity after a filling is a common occurrence. In most cases, the sensitivity is temporary and subsides within a few days or weeks. However, it is essential to monitor the sensitivity and consult your dentist if it persists or worsens over time. By following proper oral hygiene practices and communicating any concerns with your dental professional, you can ensure a smooth and comfortable recovery after a filling procedure.