Reviewed by Dr. Tiffany Deaton
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Reading time: four minutes
Tooth pain when biting down is often a sign that something is affecting the tooth, surrounding gums, or supporting structures. The discomfort may feel sharp, dull, sudden, or constant depending on the cause. In some cases, pain only occurs when chewing or applying pressure to the tooth.
With two convenient locations in Summerville, Deaton Dental Associates and Flowertown Dentistry provide comprehensive dental care for patients of all ages.
Table of Contents
Why Does My Tooth Hurt When I Bite Down?
Tooth pain when biting down can have several possible causes. A dental exam and digital X-rays help identify the source of the pain so treatment can begin before the problem worsens.
1. Cracked Tooth Syndrome
A cracked tooth is one of the most common causes of pain when biting down. Small cracks are not always visible, but they can allow pressure to irritate the inner part of the tooth.
Common cracked tooth symptoms include:
- Sharp pain when chewing
- Sensitivity to cold or sweets
- Pain that comes and goes
- Discomfort when releasing biting pressure
- Difficulty identifying which tooth hurts
Cracks can develop from teeth grinding, chewing hard foods, trauma, or large older fillings.
2. Deep Decay or Cavities
When a cavity becomes deeper, it can reach the inner pulp of the tooth where the nerves are located. This may cause pressure sensitivity, lingering pain, or discomfort while chewing.
Signs of deeper decay may include:
- Tooth sensitivity to hot or cold
- Pain when eating sugary foods
- Throbbing discomfort
- Visible dark spots or holes in the tooth
- Pain when biting
If decay reaches the pulp, root canal treatment may be necessary to save the tooth.
3. Loose or Broken Filling or Crown
A damaged filling or dental crown can change the way biting pressure is distributed across the tooth. Even a small gap or fracture may expose sensitive areas underneath.
You may notice:
- Pain while chewing
- Food trapping around the restoration
- Sharp edges
- Sensitivity to temperature
- A feeling that the bite is uneven
Dental restorations can wear down over time and may eventually need repair or replacement.
4. Gum Disease or Infection
Inflamed gums and infection around the tooth can make biting uncomfortable. In more advanced cases, infection may affect the bone and supporting tissues surrounding the tooth.
Possible symptoms include:
- Swollen or tender gums
- Bleeding while brushing or flossing
- Bad breath
- Pressure around the tooth
- A loose feeling when chewing
Gum disease treatment may include professional cleanings, scaling and root planing, or referral to a specialist when advanced care is needed.
5. Sinus Pressure or Infection
Upper back teeth share nerve pathways with the sinuses. When the sinuses become inflamed from allergies, congestion, or infection, pressure can create discomfort that feels like tooth pain.
Sinus-related tooth pain often:
- Affects upper molars
- Feels worse when bending forward
- Occurs alongside congestion or facial pressure
- Causes several upper teeth to feel sore at once
A dental exam can help determine whether the pain is coming from the teeth or the sinuses.
Evaluate Tooth Pain With a Dental Exam
Pain when biting down is not always caused by the tooth itself. Cracks, infection, gum inflammation, bite problems, and damaged restorations can all create pressure-related discomfort. A dental exam helps determine the exact source of the pain before the condition progresses further.
At Deaton Dental Associates and Flowertown Dentistry, Dr. Rhett Deaton and Dr. Tiffany Deaton provide personalized dental care focused on long-term oral health and patient comfort. Both Summerville locations use modern diagnostic technology, including digital X-rays and intraoral imaging, to evaluate symptoms accurately and recommend the most appropriate treatment.
Dentist in Summerville, SC
To book an appointment at Deaton Dental Associates, call (843) 873-3706 or visit us at 209 W 5th N St, Summerville, SC 29483.
To book an appointment at Flowertown Dentistry, call (843) 871-0814 or visit us at 445 North Cedar St, Summerville, SC 29483.
FAQs
How do I stop my tooth from hurting when I bite down?
Treatment depends on the cause of the pain. We may recommend a filling, crown, root canal, bite adjustment, gum treatment, or other care based on the diagnosis. Avoid chewing on the affected side until the tooth is evaluated.
What does a cracked tooth feel like?
A cracked tooth often causes sharp or sudden pain when biting or releasing pressure. Some people also notice sensitivity to cold temperatures or sweets.
How to tell if a tooth is infected?
An infected tooth may cause throbbing pain, swelling, pressure, gum tenderness, bad taste, or sensitivity to biting. In some cases, swelling may spread into the jaw or face.
Why does my tooth hurt unless I put pressure on it?
Pain that improves with pressure may occur when inflammation or infection changes the pressure inside the tooth or surrounding tissues. This type of symptom still requires dental evaluation to identify the cause.
