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

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Having sensitivity or pain when eating after getting a cavity filled?


Hello, doctor.
I had a dental filling for a cavity at the clinic yesterday, and after returning home, I experienced discomfort.
The next day, I felt pain when biting into food.
I just returned to the clinic, but since the doctor who treated me yesterday was unavailable, I saw another doctor.
This doctor mentioned that the extent of the cavity is significant (I saw the X-ray showing that the entire upper layer needed to be filled), so the resin covered by health insurance is insufficient for my dental needs.
They suggested that I need to pay out of pocket for a ceramic filling, which costs 20,000 NT dollars, to adequately address the issue.
However, before the filling, I was able to eat normally without any pain.
Instead, these problems arose after the appointment.
Doctor, should I seek treatment at a larger hospital?

Ting, 10~19 year old female. Ask Date: 2016/02/17

Dr. Zhang Xiangyuan reply Dentistry


Dear online user, based on your description, it seems that you are experiencing pain when biting after a dental filling.
It is advisable to monitor the symptoms of the filled tooth to see if there is any improvement.
If the biting pain persists, you should return to your dentist for an examination to determine if there are any other issues with that tooth that may require further treatment, such as occlusal adjustment or root canal therapy.
Regarding the fabrication of dentures and associated costs, it is recommended to wait until the tooth is symptom-free before consulting your dentist for an evaluation based on the condition and necessity of the teeth.
Thank you for your inquiry.

Reply Date: 2016/02/17

More Info


Experiencing tooth pain after a dental filling can be a frustrating and concerning issue. There are several potential reasons for this discomfort, and understanding them can help you determine the best course of action.

Firstly, it’s important to recognize that dental fillings, especially those for cavities, can sometimes lead to sensitivity or pain post-treatment. This can occur for several reasons:
1. Inflammation of the Pulp: After a filling, the dental pulp (the innermost part of the tooth containing nerves and blood vessels) may become inflamed. This inflammation can be due to the trauma of the drilling process or the chemical composition of the filling material. If the inflammation is significant, it can lead to pain when biting or chewing.

2. High Filling: If the filling is too high, it can cause discomfort when you bite down. This is because the filled tooth may not align properly with the opposing teeth, leading to undue pressure on the tooth. A simple adjustment by your dentist can often resolve this issue.

3. Cracked Tooth: If the tooth was already compromised before the filling, it may have had micro-cracks that were exacerbated during the filling process. These cracks can lead to pain, especially when chewing or applying pressure.

4. Sensitivity to Temperature: After a filling, it’s common for teeth to be sensitive to hot and cold temperatures. This sensitivity can last for a few days to weeks as the tooth adjusts to the filling material.

5. Underlying Issues: Sometimes, the pain may not be directly related to the filling itself but could be due to underlying issues such as decay that was not fully addressed, or even issues with adjacent teeth or gums.

Given your situation, where you mentioned that you were able to eat normally before the filling but are now experiencing pain, it’s crucial to follow up with your dentist. Here are some steps you can take:
- Return to Your Dentist: Since you experienced pain after the filling, it’s advisable to return to the dentist who performed the procedure. They can assess the filling, check for any high spots, and determine if there are any underlying issues that need to be addressed.

- Consider a Second Opinion: If you feel that your concerns are not being adequately addressed, seeking a second opinion from another dentist can provide additional insights. They may offer different treatment options or confirm the necessity of the proposed ceramic filling.

- Monitor Symptoms: Keep track of your symptoms. If the pain worsens, or if you experience swelling, fever, or other concerning symptoms, seek immediate dental care. These could be signs of an infection or other complications.

- Discuss Treatment Options: If your dentist suggests a more expensive ceramic filling due to the extent of the decay, discuss the pros and cons. Sometimes, a more durable material is necessary, especially if the tooth is under significant stress from chewing.

In conclusion, while it’s not uncommon to experience some discomfort after a dental filling, persistent or severe pain should not be ignored. It’s essential to communicate openly with your dentist about your symptoms and concerns. If necessary, don’t hesitate to seek a second opinion or visit a dental specialist for further evaluation. Your oral health is important, and addressing these issues promptly can help prevent more serious complications down the line.

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