Why Does My Tooth Still Hurt After Having a Cavity Filled?
The toothache after filling cavities may be due to the inflammation of the nerve before filling, but the doctor did not detect the inflammation and did not treat it. It could also be caused by physical stimulation of the pulp during drilling, the water used to rinse the cavity being too cold, or the bite point being too high, which leads to pain when the upper and lower teeth come into contact. Additionally, the filling material being too thin can also cause pain.
1. Physical stimulation of the pulp during the process of drilling and preparing the cavity, overly cold water rinsing the cavity, continuous heat generation from drilling, and the negative pressure of drilling can all irritate the pulp, leading to pulp hyperemia.
2. A high bite point refers to the filling material being placed too high, causing pain when biting down.
3. If the cavity is too large and the filling material is too thin, it cannot isolate the mutual conduction of hot and cold stimuli, resulting in stabbing pain. Simply adding more filling material can resolve this issue.
4. During treatment, the nerve may need to be killed. On the day of or after nerve blockage, toothache may occur due to the medication, but it is usually not severe and temporary, so there is no need for excessive concern.
5. The disinfectant used during the filling process may stimulate the pulp, causing pain from hot and cold stimuli. This situation usually resolves within a few days.
6. If a dentist performs a simple filling for a tooth with infected pulp nerves, as the body's resistance decreases or the tooth's condition worsens, severe swelling and pain may occur.
