Why Does My Tooth Hurt When I Bite Down?

If you feel pain only when chewing or biting, it can be confusing — your tooth may feel fine otherwise. This type of pain usually means something is putting pressure on sensitive structures inside or around the tooth. The good news: many causes are very treatable once identified.

Common Causes

1. A Cracked Tooth

Tiny cracks may not be visible but can flex under pressure, irritating the nerve.

2. A High Filling or Crown

If dental work sits slightly too high, your bite force concentrates on one tooth.

3. Tooth Decay

Cavities weaken enamel, allowing pressure to reach sensitive inner layers.

4. Gum or Ligament Inflammation

The ligament holding your tooth in place can become inflamed from grinding or infection.

5. Tooth Infection

Pain when biting is often an early warning sign of infection inside the tooth.

What You Can Do Now

  • Avoid chewing on that side
  • Eat softer foods
  • Use anti-inflammatory medication if appropriate
  • Keep the area clean with gentle brushing
When to See a Dentist

Schedule an exam if:

  • Pain lasts more than 2–3 days
  • Biting pressure causes sharp pain
  • You notice swelling or sensitivity to heat
Next Step

Biting pain rarely resolves completely on its own. Early evaluation often prevents more complex treatment later.

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