Post-Filling Tooth Pain: Is It Normal After Dental Treatment? - Dentistry

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After getting a dental filling, biting down on something causes pain..?


Hello Dr.
Tsao: I received treatment for my molar at a dental clinic near my home.
I have completed root canal therapy and had a post placed.
It has been a week since the tooth was filled, but now I experience gum pain when biting into food (for example, pork) with that specific tooth.
Pressing down on the tooth with my hand also causes pain, which makes me hesitant to use the filled tooth for biting.
Is this normal?

Wright, 20~29 year old female. Ask Date: 2006/09/05

Dr. Cao Guoqing reply Dentistry


Dear readers: To know the truth, simply get an X-ray at the dental clinic.
It is abnormal for a restored tooth to be unable or unwilling to bite.
Cao Guoqing, Hualien Hospital

Reply Date: 2006/09/05

More Info


Post-filling tooth pain can be a common experience after dental treatments, especially following procedures like root canal therapy and subsequent fillings. It is important to understand the reasons behind this discomfort and what steps can be taken to address it.

Firstly, it is not unusual to experience some level of discomfort after a dental filling, particularly if the tooth had undergone root canal treatment. The process of root canal therapy involves the removal of the tooth's nerve and pulp, which can lead to inflammation in the surrounding tissues. After the procedure, the area may still be sensitive as it heals. This sensitivity can manifest as pain when biting down or applying pressure to the treated tooth.

In your case, since you mentioned that the pain occurs specifically when biting down on food, it could be attributed to several factors:
1. Inflammation: After a root canal, the surrounding tissues may still be inflamed. This inflammation can cause discomfort when pressure is applied to the tooth.

2. High Filling: If the filling material is too high, it can create an uneven bite, leading to discomfort when chewing. This is often referred to as "bite trauma." If the filling is too high, it can cause the tooth to be in a position where it is not aligned properly with the opposing teeth, resulting in pain during biting.

3. Gum Sensitivity: The gums around the treated tooth may also be inflamed or sensitive, especially if the filling was placed close to the gum line. This can cause pain when pressure is applied.

4. Underlying Issues: In some cases, there may be underlying issues such as residual infection or inflammation in the root area that could contribute to ongoing discomfort.

Given that you are experiencing pain when biting and when applying pressure to the tooth, it is advisable to follow up with your dentist. They can perform an examination to determine if the filling is at the correct height and if there are any other issues that need to be addressed. If the filling is too high, a simple adjustment can often alleviate the discomfort.

Additionally, if the pain persists or worsens, further diagnostic imaging, such as X-rays, may be necessary to rule out any complications, such as an infection or issues with the root canal treatment itself.

In the meantime, you can manage the discomfort with over-the-counter pain relievers, as recommended by your dentist. Avoiding hard or chewy foods can also help minimize pain while the area heals.

In summary, while some discomfort after dental treatment is normal, persistent or severe pain should not be ignored. It is crucial to communicate with your dentist about your symptoms to ensure that any underlying issues are addressed promptly. Your oral health is important, and timely intervention can prevent further complications.

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