9 Possible Reasons Why Your Tooth Hurts When Biting Down or Chew

September 25, 2025

9 Possible Reasons Why Your Tooth Hurts When Biting Down or Chewing.

TLDR

Several reasons can cause your tooth to hurt, including cavities, gum disease, cracks, and other dental issues. Some tooth issues are minor, but others would need urgent dental attention. If you notice any pain in your tooth, don’t hesitate to visit your dentist.

Table of Contents

1. Sensitive Teeth

This is one of the most common reasons for discomfort when chewing. It is caused by exposure of the dentin due to the wearing away of the protective enamel. The dentin contains tubules connected to the nerve endings, which can trigger pain when exposed to hot, cold, sweet, or acidic foods. The solution is using desensitizing toothpaste and avoiding very acidic foods and drinks. However, if the pain persists, schedule a session with our dentist in Locust, NC.

2. Large Cavity in a Tooth

Cavities (dental caries) could be tiny or large spots of decay on the tooth. A deep cavity can make biting down extremely painful. When decay progresses deeper into the tooth, near the nerves, it could cause severe pain. Cavities don’t heal on their own. It can be fixed with a dental filling, crowns, antibiotics, or root canals, depending on the severity.

3. You Have a Dental Abscess

Are you experiencing tooth pain after filling? There could be an abscess at the tip of the root of your tooth. A dental abscess is a pouch of pus caused by bacterial infection. Additional symptoms include facial swelling and even fever. An abscess needs to be treated immediately.

4. You Have a Crack in the Tooth

Your tooth could be cracked because you grind your teeth in your sleep. Cracked tooth syndrome can cause sharp pain when you bite down, especially on hard foods. Cracks may not be visible, but can cause severe nerve irritation inside the tooth. Treatments range from getting crowns and bonding to root canals, depending on the severity of the crack.

5. Periodontal Disease

Gum disease, also known as periodontitis, is an inflammation of the gums that destroys the soft tissues surrounding the teeth. Signs of a gum infection include bleeding gums, bad breath, and gum recession. The solution is thorough deep cleaning and maintaining improved oral hygiene after treatment.

6. You Have a Sinus Infection

Sinusitis is an inflammation of the tissues surrounding the spaces in your skull that link to your nasal cavity (sinuses). Believe it or not, sinus pressure can cause tooth pain, especially behind your upper molars. Nasal congestion, along with a toothache, needs to be treated to relieve the discomfort.

7. Impacted Wisdom Tooth

Wisdom teeth that have not fully erupted can push against surrounding teeth, causing pressure, pain, and even jaw stiffness. In some cases, the tooth may have to be removed by an oral surgeon.

8. Malocclusion or High Filling

 Ever noticed that your upper tooth and lower tooth do not align, or your bite feels “off”? Perhaps you recently had a filling or crown done. The extra pressure can lead to soreness and inflammation. Your dentist can correct it by adjusting the filling or crown for balance.

9. Gum Recession and Root Exposure

Receding gums expose the sensitive root surface, making teeth more vulnerable to pain when biting, brushing, or consuming hot and cold foods. Treatments may include gum grafting, bonding, or the application of desensitizing varnishes during an in-office visit.

What Should I Do For Tooth Pain Relief?

Mild discomforts can sometimes resolve on their own, but if they persist, don’t ignore them. Issues such as cavities, abscesses, or cracked teeth can lead to infection, tooth loss, and high treatment costs later on.

If your tooth hurts when biting down, book a dental appointment as soon as possible. Early intervention can save your tooth and protect your overall health.

General Dental Care for Tooth Pain Relief in Locust, NC

Dr. Enes, dentist near Locust, NC, providing comprehensive dental care for patients with tooth pain.

If you are experiencing tooth pain after filling, biting, or chewing, don’t ignore the signs. Persistent pain often indicates a condition that requires professional medical attention. Our dentists in Locust, near Midland, Oakboro, Stanfield, and Red Cross, NC, offer comprehensive dental exams, digital X-rays, and treatments to restore comfort and protect your smile.

Key Takeaways

  • If your tooth hurts when you chew, it can have multiple causes, ranging from sensitivity to infection.
  • Early diagnosis and treatment can prevent complications like tooth loss or severe infection.
  • Visit Locust Family Dentistry to see our dentists, Dr. Zeitouni and Dr. Enes, if your pain persists for more than a day or worsens over time.

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