Why Do My Teeth Hurt When I Bite Down?

May 10, 2026
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Posted By: Dr. Brittany Wilson

If you feel pain when biting down on food or when you release your bite, it can be concerning. Tooth pain during chewing is actually a very common reason patients visit The Henderson Dentist, and it can have several possible causes.

Understanding what might be happening can help you know when it’s time to schedule an evaluation.

Common Causes of Pain When Biting

Cracked Tooth

One of the most common causes of pain when biting is a cracked tooth. These cracks are often too small to see but can cause discomfort when pressure is applied.

Patients often describe the pain as:

  • Sharp when biting

  • Sudden and hard to pinpoint

  • Worse with certain foods

A cracked tooth may need treatment such as a dental crown to prevent the crack from worsening.

Tooth Decay

A cavity that has grown deeper into the tooth can cause sensitivity or pain when biting. As decay approaches the inner layers of the tooth, it can begin to affect the nerve.

Treatment may include a filling or crown, depending on how large the cavity is.

A High Filling or Crown

If you recently had dental work done, the bite may need a minor adjustment. When a filling or crown sits slightly too high, it can cause pain or pressure during chewing.

Fortunately, this is usually a quick fix.

Tooth Infection

If bacteria reach the inner pulp of the tooth, it can cause inflammation and infection. This may result in:

  • Pain when biting

  • Sensitivity to hot or cold

  • Lingering discomfort

In this situation, a root canal treatment may be necessary to save the tooth.

Don’t Ignore Bite Pain

Tooth pain when biting rarely resolves on its own. In fact, waiting can sometimes allow the problem to worsen.

Early treatment can often prevent more complex procedures later.

When to See a Dentist

You should schedule a dental visit if:

  • Pain lasts more than a few days

  • Pain worsens when chewing

  • You notice swelling or sensitivity

  • A tooth feels loose or cracked

At The Henderson Dentist, we use digital imaging and a thorough exam to identify the exact cause of your discomfort and recommend the best treatment.