Is Increased Sensitivity After Dental Filling Normal? Tooth Sensitivity

Q: Is Increased Sensitivity After Dental Filling Normal? Tooth Sensitivity

Hello： If resin is used to cover the exposed areas of the teeth, the preliminary step will involve etching with acid. <br>If sensitivity persists after the restoration, it is advisable to monitor the situation or consult a dentist to consider using alternative materials. <br>Sinc

The doctor diagnosed it as tooth sensitivity. Is it normal for it to be more sensitive after a filling?

Hello, Doctor.
I originally experienced pain when using dental floss on my upper left last molar.
After an examination, the doctor said it didn't seem like a cavity.
After conducting a blow test, it was found that my second-to-last molar was sensitive (I already have sensitive teeth, and the painful tooth is different from the one the doctor treated for sensitivity).
The doctor then filled it, and I heard him mention "acid erosion" while talking to the nurse.
After the treatment, the blow test was not very painful, but when I got home and brushed my teeth, I found that the area the doctor filled (the sensitive spot) became even more sensitive.
Just lightly touching it with the toothbrush causes unbearable discomfort.
Is this normal, or does it need time to adjust? Thank you, Doctor.

Chen, 20~29 year old female. Ask Date: 2022/06/11

Dr. Lin Jiayong reply Dentistry

Hello: If resin is used to cover the exposed areas of the teeth, the preliminary step will involve etching with acid.
If sensitivity persists after the restoration, it is advisable to monitor the situation or consult a dentist to consider using alternative materials.
Sincerely, Lin Chia-Yung, Department of Dentistry, Taichung Hospital, Ministry of Health and Welfare.

Reply Date: 2022/06/11

More Info

Increased sensitivity after a dental filling is a common experience for many patients, and it can be attributed to several factors related to the dental procedure and the condition of the tooth prior to treatment. When a dentist performs a filling, especially in cases where decay was present, the tooth structure is altered, and this can lead to heightened sensitivity.
Tooth sensitivity, particularly after a filling, can occur for a variety of reasons:
1. Nerve Irritation: The dental procedure can irritate the nerves within the tooth. When decay is removed, the underlying dentin (the layer beneath the enamel) is exposed, which can lead to increased sensitivity to temperature changes and pressure. This is particularly true if the filling is close to the nerve endings.

2. Material Reaction: The materials used in dental fillings can also contribute to sensitivity. Some patients may have a reaction to the filling material, which can cause discomfort. For example, if a composite resin is used, it may take some time for the tooth to adjust to the new material.

3. Post-Operative Inflammation: After a filling, there may be some inflammation in the surrounding gum tissue or within the tooth itself, which can lead to temporary sensitivity. This inflammation can be a normal part of the healing process.

4. Bite Adjustment: Sometimes, if the filling is slightly higher than the surrounding tooth structure, it can cause an improper bite, leading to discomfort when chewing or even when brushing. This can exacerbate the feeling of sensitivity.

5. Existing Sensitivity: If you already have sensitive teeth, the filling may temporarily increase that sensitivity, especially if the tooth was already compromised in some way.

In your case, since you mentioned that the sensitivity increased after the filling, it is advisable to monitor the situation. Sensitivity can often improve over time as the tooth adjusts to the filling. However, if the sensitivity persists beyond a few weeks, or if it worsens, it is crucial to return to your dentist for a follow-up examination. They can check for any issues such as:
- Improper Bite: They can assess if the filling is too high and make necessary adjustments.

- Underlying Issues: They can evaluate if there are any underlying problems, such as a crack in the tooth or issues with the nerve that may require further treatment.

In the meantime, using a desensitizing toothpaste can help alleviate some of the discomfort. These toothpastes contain compounds that help block the transmission of pain signals from the tooth surface to the nerve. Additionally, practicing gentle brushing techniques and avoiding extremely hot or cold foods can help manage sensitivity.

In conclusion, while increased sensitivity after a dental filling can be normal, it is essential to keep an eye on the symptoms. If they do not improve or if you have concerns, do not hesitate to reach out to your dentist for further evaluation and management. Your oral health is paramount, and addressing any issues early can prevent more significant problems down the line.

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