Why Does My Tooth Hurt More After Filling? Dental Pain - Dentistry

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The filled tooth hurts more than it did before the filling?


Hello,
Recently, during a routine dental check-up, I discovered that the second-to-last molar on the upper right side has a small cavity.
This tooth had been filled a long time ago.
The dentist mentioned that the cavity is small but very close to the previous filling, so they would need to drill out the old filling to clean it before refilling.
Before the procedure, I had no pain or sensitivity in that tooth, but after the filling, I experienced pain while eating, even with soft foods.
When I returned for a follow-up, the dentist suggested that the previous filling might not have been thick enough, so they drilled it out and refilled it again.
After the anesthesia wore off, the pain was even worse than before.
I can only eat porridge without pain; there is no discomfort when I'm not eating, but I experience pain whenever I eat.

Is it really possible for a filling that is not thick enough to cause tooth pain? What constitutes a "thick" filling? It's hard to believe that a professional dentist wouldn't know how much material to use for a given cavity size.
Do you think I should continue to trust this dentist? Should I go back for a third visit, or would it be better to switch to another clinic? Could there be other possible reasons for this increased pain after two fillings? What would you recommend I do?
Thank you for your time and response!

June, 30~39 year old female. Ask Date: 2007/12/08

Dr. Wu Jinjun reply Dentistry


Hello: Generally, a previously filled cavity that develops a secondary cavity due to poor oral hygiene may be deeper and closer to the dental pulp nerve canal, which can sometimes lead to tooth sensitivity or pulpitis.
The specific situation varies from person to person.
We welcome you to visit our dental clinic for further advice.
Thank you! Dr.
Yang Zhiren, Dentist, Hsinchu Hospital, Department of Health, Executive Yuan.

Reply Date: 2007/12/08

More Info


Tooth pain after a filling can be a frustrating and concerning experience, especially when the pain seems to worsen after dental treatment. There are several potential reasons for this discomfort, and understanding them can help you navigate your dental care more effectively.

1. Incomplete Removal of Decay: One common reason for pain after a filling is that not all of the decay was removed before the filling was placed. If any decayed tissue remains, it can continue to cause irritation and pain, especially when pressure is applied during chewing.

2. Sensitivity to Temperature: After a filling, it’s not uncommon for teeth to become sensitive to hot or cold temperatures. This sensitivity can occur due to the nature of the filling material or the way the tooth responds to the treatment. If the filling is too close to the nerve of the tooth, it can lead to increased sensitivity.

3. High Filling: If the filling is too high, it can create an improper bite, leading to discomfort when chewing. This can cause the tooth to feel painful when pressure is applied. A dentist can adjust the filling to ensure that it is level with the surrounding teeth.

4. Pulpitis: Sometimes, the dental pulp (the innermost part of the tooth containing nerves and blood vessels) can become inflamed after a filling, a condition known as pulpitis. This can happen if the filling is placed too close to the nerve or if the tooth was already compromised before the filling.

5. Cracked Tooth: If the tooth has a crack or fracture, it may not have been visible during the initial examination. Cracks can lead to pain when chewing or biting down, and they may not be immediately apparent until after a filling is placed.

6. Allergic Reaction: In rare cases, patients may have an allergic reaction to the materials used in the filling, which can cause discomfort or pain.

7. Psychological Factors: Sometimes, anxiety or stress related to dental procedures can amplify the perception of pain. If you are particularly anxious about dental work, this could contribute to your discomfort.

Given your situation, where the pain has increased after two fillings, it would be advisable to return to your dentist for a follow-up appointment. Communicate your concerns clearly, and ask for a thorough examination to determine the underlying cause of your pain. If the dentist suggests that the filling was not adequately placed or if there are signs of further decay or complications, they may need to adjust or replace the filling.

If you feel that your concerns are not being adequately addressed, or if you continue to experience pain despite treatment, seeking a second opinion from another dental professional may be a wise choice. It’s important to feel confident in your dental care provider and to ensure that your concerns are taken seriously.

In the meantime, you can manage discomfort with over-the-counter pain relievers, but be sure to follow the dosage instructions. Avoid extremely hot or cold foods and drinks, and stick to softer foods that won’t aggravate the pain.

In summary, tooth pain after a filling can arise from various factors, including incomplete decay removal, sensitivity, high fillings, pulpitis, cracks, allergic reactions, or psychological factors. A follow-up with your dentist is essential to address these issues, and if necessary, consider seeking a second opinion to ensure you receive the best care possible.

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