Post-Filling Symptoms: Dental Sensitivity and Solutions

Q: Post-Filling Symptoms: Dental Sensitivity and Solutions

Hello： If there are two or more different types of metals in the oral cavity, literature has documented that a potential difference may occur, leading to conductivity. <br>The recommended approach is to remove all metal components and replace them with filling materials made of t

Symptoms After Dental Filling

Hello, Doctor.
On August 7, I had four teeth filled at a dental clinic near my home.
These included the left upper first molar, right upper first molar, and right lower second molar, along with one tooth whose location I am unsure of.
The material used seems to be silver-colored.
On August 14, I started feeling some sensitivity in my teeth.
My left lower first molar was filled by a dentist when I was in elementary school, and it has been over ten years.
The dentist checked it and found no issues, but he polished it a bit.
The filling material used back then was silver amalgam, which has now turned black.
Therefore, I believe I have five teeth filled with silver amalgam or similar metallic materials.
My question is, since the day he polished my teeth, whenever I close my mouth—even before fully closing it and without needing to bite down—I experience an electric shock sensation.
After this sensation, when I touch these teeth with my tongue, I feel a burning sensation.
Eating or drinking hot or cold beverages does not cause any pain or discomfort; it feels similar to static electricity in winter.
I can't sleep with my mouth closed, and when I open my mouth as if for a dental examination, I do not feel the electric sensation.
However, I can't live with my mouth open.
Could this be a metal reaction? Is there a solution? I discussed this with my dentist, who initially said it was a sensitivity reaction after the fillings, but today he only mentioned the need for root canal treatment.
How should I ask my dentist to help me resolve this? I do not want to resort to root canal treatment for otherwise healthy teeth.

Wenzi, 30~39 year old female. Ask Date: 2021/08/18

Dr. Lin Jiayong reply Dentistry

Hello: If there are two or more different types of metals in the oral cavity, literature has documented that a potential difference may occur, leading to conductivity.
The recommended approach is to remove all metal components and replace them with filling materials made of the same material.
It is advisable to first consult a medical center for a second or third opinion to confirm whether root canal treatment is necessary.
Sincerely, Lin Chia-Yung, Department of Dentistry, Taichung Hospital, Ministry of Health and Welfare.

Reply Date: 2021/08/18

More Info

Post-filling sensitivity is a common issue many patients experience after dental procedures, especially after fillings. Your symptoms, including the electric shock-like sensation and the burning feeling when you touch the filled teeth, can be quite concerning. Let's break down the potential causes and solutions for your situation.

Understanding Dental Sensitivity
1. Nature of Dental Fillings: The materials used for dental fillings, such as amalgam (silver fillings), can sometimes cause sensitivity due to thermal expansion and contraction. When you eat or drink hot or cold substances, the filling material may expand or contract differently than the natural tooth structure, leading to discomfort.

2. Nerve Sensitivity: After a filling, the nerves inside the tooth can become more sensitive. This is particularly true if the decay was deep, close to the pulp (the nerve center of the tooth). The sensitivity can manifest as sharp pain or a tingling sensation when pressure is applied or when the teeth come into contact with each other.

3. Occlusal Issues: If the fillings are slightly higher than the surrounding tooth structure, they can create an improper bite (malocclusion). This can lead to discomfort when the teeth come together, causing the sensation you described.
4. Gum Recession or Tooth Wear: If there has been any gum recession or wear on the teeth, the exposed dentin can lead to increased sensitivity. This is because the dentin contains tiny tubules that connect to the nerve endings inside the tooth.

Possible Solutions
1. Observation and Time: Sometimes, sensitivity after a filling can resolve on its own as the nerves calm down. It may be beneficial to give it a little more time, especially if the sensitivity is mild.

2. Desensitizing Toothpaste: Using a toothpaste specifically designed for sensitive teeth can help. These products contain compounds that block the transmission of sensation from the tooth surface to the nerve.

3. Adjustments: If the sensitivity is due to occlusal issues, your dentist can perform an adjustment. This involves reshaping the filling to ensure it aligns properly with your bite, which can alleviate the pressure and discomfort.

4. Further Evaluation: If the symptoms persist or worsen, it is essential to return to your dentist for a thorough evaluation. They may need to take X-rays to check for any underlying issues, such as pulpitis (inflammation of the pulp) or other complications.

5. Root Canal Treatment: If your dentist suspects that the pulp is inflamed or infected, they may recommend a root canal. While this may seem daunting, it is often necessary to save the tooth and alleviate pain. However, it is essential to discuss all your concerns with your dentist, including your desire to avoid this procedure if possible.

Communication with Your Dentist
When discussing your symptoms with your dentist, be clear about your experiences. Explain the sensations you feel, when they occur, and any changes since your fillings were placed. Ask about the possibility of adjustments to the fillings and express your concerns regarding root canal treatment. A good dentist will work with you to find the best solution that addresses your symptoms while preserving your natural teeth as much as possible.

In conclusion, while post-filling sensitivity can be uncomfortable, there are several potential solutions. It is crucial to maintain open communication with your dental care provider to ensure you receive the appropriate care tailored to your needs. If you feel uncertain about your dentist's recommendations, seeking a second opinion can also provide additional insights and options.

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