Why does my tooth still hurt after getting a filling?

Some patients experience tooth sensitivity months after a dental filling. Is it something common? Or do the patients need to worry about it? This article will talk about what causes tooth sensitivity and when one should be worried about it.

What is tooth sensitivity?

Having sensitive teeth is when you experience mild ache or discomfort in the teeth when they encounter hot or cold drinks. This is a normal side-effect a patient can get after dental works such as cavity fillings or tooth extractions. The reason for the sensitivity is usually the inflammation of nerves inside the tooth after the procedure.

Causes of teeth sensitivity weeks or months after getting a filling

Tooth sensitivity right after dental work is absolutely normal. However, if the sensitivity persists weeks or even months after the process, it may be a sign of a severe issue that needs prompt attention.

Filling interfering with the bite

If the filling is incorrectly placed or is disrupting the bite, it may deteriorate when the person is chewing on the food. This may cause cracks on the filling. If a badly fitted filling is left untreated, it may break or fall off, exposing the tooth. If a filling is incorrectly installed or positioned, the person should see a dentist reshape the filling.

Oral infection

There is a slight chance that an infection has erupted after the filling, causing the discomfort and throbbing pain.

Cracks and damage to the teeth or filling

Damage to the teeth or the filling may expose nerves and sensitive tissues inside the tooth, triggering tooth sensitivity if exposed to hot or cold beverages.

Are you wondering how to manage sensitive teeth due to cracks and damages to the teeth or filling? Maintaining oral health should be your top priority when facing mouth problems like these.

  • You may want to use a special toothpaste for sensitive teeth.
  • Brush regularly
  • Gently gargle using salty warm water


If a patient is allergic to the material used in the filling. This can also cause the tooth with the filling to become sensitive.

When to visit a dentist for sensitive Teeth 

If a patient experiences tooth sensitivity or pain even months after a cavity filling, one can assume an underlying cause. The standard timeframe for tooth sensitivity after filling up a decay should only be a few days to a few weeks. If the tooth sensitivity continues after this timeframe, it is a sign that there is something wrong.

The right thing to do is to see your dentist. The dentist will determine the tooth or the filling problem and provide treatment to get rid of the tooth sensitivity and pain.

Are you looking for an experienced dentist in Richmond, TX? Contact Mission Bend Family Dentistry at 832-895-5110.

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