Tooth pain under a crown that comes and goes is usually a sign that something is irritating the tooth, nerve, bite, or tissues around the crown. Common causes include decay beneath the crown, an inflamed tooth nerve, a crown that sits too high, a loose crown, a cracked tooth, or infection.
The pattern of the pain can offer important clues. Pain when biting may point to a bite or crown-fit problem, while throbbing pain, pain at night, lingering sensitivity to hot or cold, swelling, or a bad taste may indicate inflammation or infection.
Mild sensitivity can occur shortly after a new crown is placed, but recurring pain weeks, months, or years later should be evaluated by a dentist.
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Is It Normal for Tooth Pain Under a Crown to Come and Go?
Tooth pain under a crown that comes and goes is not always an emergency, but it should not be ignored. Mild sensitivity shortly after getting a new crown can happen, especially when eating or drinking something hot, cold, or sweet. However, recurring pain in a tooth with a crown may also point to a deeper issue, such as tooth decay under the crown, an irritated nerve, a loose crown, bite problems, or infection. In some cases, this discomfort is actually caused by tooth decay under crown, which often develops without obvious warning signs.
If you keep asking, “why does my tooth hurt under my crown?” the safest answer is that the tooth needs to be checked by a dentist. Crown-related pain can feel temporary at first, but the underlying cause may continue to worsen if bacteria, nerve inflammation, or pressure from an uneven bite is involved.
| What You Feel | Possible Cause | What It May Mean | What to Do |
|---|---|---|---|
| Pain comes and goes when chewing | High bite or crown fit issue | The crown may be putting too much pressure on the tooth | See your dentist for a bite adjustment |
| Sharp pain when biting down | Cracked tooth, loose crown, or nerve irritation | The tooth under the crown may be stressed or damaged | Avoid chewing on that side and book a dental visit |
| Sensitivity to hot or cold | Exposed dentin, gum recession, or irritated nerve | Mild sensitivity may improve, but lingering pain can suggest pulp irritation | Use desensitizing toothpaste and monitor symptoms |
| Throbbing pain under crown | Infection or abscess | This can become serious if untreated | Contact a dentist promptly |
| Bad taste, swelling, or gum bump | Dental abscess or decay under crown | Bacteria may be trapped under the crown | Seek dental care as soon as possible |
| Pain under an old crown after years | Decay, cement failure, crown leakage, or gum changes | The crown may no longer seal the tooth properly | Dentist may need X-rays and crown replacement |
How Long Tooth Pain After Crown Placement Typically Lasts
If throbbing tooth pain after crown placement continues longer than expected or becomes more intense instead of improving, it may suggest issues such as bite misalignment, gum inflammation, or irritation beneath the crown. In these situations, early dental evaluation helps prevent complications and ensures the long-term success of your restoration.
| Time After Crown Placement | What Is Usually Normal | When to Contact a Dentist |
|---|---|---|
| First 24–48 hours | Mild sensitivity or pressure discomfort | If pain is sharp or severe |
| 3–5 days | Gradual improvement expected | If throbbing tooth pain after crown placement continues |
| 1 week | Most sensitivity should resolve | If pain remains unchanged |
| 2+ weeks | Pain usually not normal | Professional evaluation recommended |
| Months later | Not part of healing process | Possible infection or bite issue |
Monitoring how your tooth pain after crown placement changes over time is one of the most reliable ways to know when professional care is needed.
Why Does My Crown Hurt When I Put Pressure on It?
If your crown hurts when you put pressure on it, the most common causes include a high bite, crown fit issues, nerve irritation, decay under the crown, a cracked tooth, or inflammation around the tooth root. Pressure pain is especially common when the crowned tooth hits harder than the surrounding teeth during chewing or clenching.
Mild pressure sensitivity after a new crown can improve within a few days, but pain that continues, worsens, or appears months or years later should be checked by a dentist. A bite adjustment, X-rays, or crown evaluation may be needed to identify the cause.

Tooth Pain Under Crown Causes
Pain under a crown can come from the tooth itself, the surrounding gums, or pressure on your bite. Common causes include:
1. Tooth Decay Under the Crown
Decay can develop where the crown meets the tooth, especially if plaque collects near the gumline or the seal has weakened. Pain may come and go at first and become more persistent as the decay progresses.
2. Nerve Inflammation
Deep decay, an injury, or recent dental work can irritate the pulp inside the tooth, causing sensitivity to hot and cold or a lingering ache. Similar delayed symptoms can occur after a filling, as explained in Why Does My Tooth Filling Hurt After Months.
If the pulp cannot recover, root canal treatment may be needed. Our guide explains how long it takes to recover from a root canal. If a tooth with a root canal hurts with pressure, the discomfort may have a different cause and should be checked if it persists.
3. A Crown That Is Too High
A crown that sits too high can make the tooth contact the opposing teeth before the rest of your bite. This extra pressure may cause pain during chewing or clenching. If your bite feels uneven, your dentist can check whether the crown needs adjusting.
4. A Loose Crown
When the cement holding a crown weakens, the crown may move and allow saliva, food, and bacteria underneath. You may notice sensitivity, gum irritation, or a bad taste. Have a loose crown checked promptly to protect the tooth beneath it.
5. A Tooth Abscess
An infection around the tooth’s root can form an abscess, causing throbbing pain, swelling, pus, or a bad taste. Fever may also occur. These symptoms need urgent dental attention.
6. Gum Recession
If the gum recedes around the crowned tooth, it can expose part of the root. This area may become sensitive to cold drinks, sweet foods, brushing, or air.
7. A Cracked Tooth
A crack beneath the crown can cause sharp pain when biting down or releasing pressure. Cracks are not always visible, so your dentist may use bite tests, X-rays, and an examination to investigate.
8. Teeth Grinding or Clenching
Grinding or clenching puts repeated pressure on crowned teeth and can cause soreness when biting. It often happens during sleep, so you may not realize you do it. Your dentist can look for signs of wear and discuss whether a custom night guard could help protect your teeth and crowns.
Symptoms of Crown-Related Tooth Pain
If you experience tooth pain under a crown at night or sensitivity under a dental crown, pay attention to the following symptoms:
- Sharp pain when biting or chewing
- Pain that appears only when pressure is placed on the crown
- Throbbing tooth pain after crown placement
- Morning chewing pain, especially with teeth grinding
- Temperature sensitivity
- Swelling, redness, bad taste, or gum irritation
Pain that comes and goes can still be a warning sign. Infections and nerve problems may feel mild at first, then become more painful as inflammation increases.
Toothache Under Crown Treatment
Depending on the cause, treatment options may include:
- Dental cleaning and crown adjustment: If your crown causes an improper bite, your dentist may adjust or replace it.
- Antibiotics for infection under dental crown: Antibiotics may be prescribed before further treatment if an infection is present.
- Root canal for pulpitis under crown: If nerve damage is the issue, a root canal may be necessary to remove infected tissue.
- Replacing an old or loose crown: If you have tooth pain under an old crown, your dentist may recommend replacing it.
How to Relieve Crown Tooth Pain at Home
Several effective home remedies can provide temporary relief while your mouth adjusts to the new crown. These simple steps can be helpful as a home remedy for a toothache under a crown during the early healing period. Rinsing with warm saltwater—mixing one teaspoon of salt in warm water—helps reduce inflammation and promotes healing of the gum tissue. Applying a cold compress to the outside of your cheek can help minimize swelling and provide temporary pain relief by numbing the area. If you are experiencing discomfort before seeing a dentist, here’s what to do for crown tooth pain:
- Take over-the-counter pain relievers like ibuprofen.
- Avoid extremely hot, cold, or sugary foods.
- Use a desensitizing toothpaste for sensitivity under a dental crown.
- Rinse with warm salt water to reduce inflammation.
- Avoid chewing on the affected side to minimize crown tooth pain when biting.
Using desensitizing toothpaste formulated for sensitive teeth can gradually reduce discomfort, particularly when dealing with temperature sensitivity. During the initial healing period, avoid hard, sticky, cold, and extremely sugary foods that may aggravate the crowned tooth. Soft foods are usually more comfortable, and questions like can i eat scrambled eggs after tooth extraction are common when patients are looking for easy-to-chew meal options. Practice good oral hygiene with a soft-bristle toothbrush to keep the area clean without causing additional irritation.
For mild pain, over-the-counter pain relievers such as ibuprofen can provide effective relief. Drinking room-temperature liquids helps avoid temperature sensitivity triggers that can cause sharp, sudden pain. Some patients find that natural herbal remedies, such as clove oil, are beneficial as a home remedy for toothache under crown when applied carefully to the affected area.
When to See a Dentist
If you have persistent or worsening pain under a crown after years of wear, schedule an appointment with your dentist. Early intervention can prevent complications such as severe infections or tooth loss.
When Is Crown Tooth Pain an Emergency?
Seek urgent dental care if you have tooth pain under a crown along with facial swelling, fever, difficulty swallowing, difficulty breathing, pus, or severe throbbing pain. These symptoms may suggest that an infection is spreading. A dental abscess is a pocket of pus caused by bacterial infection, and it can affect the tooth, gums, and nearby bone if untreated.
Final Thoughts
Tooth pain under a crown is not normal and should not be ignored. Whether it is an infection, a nerve issue, or a poorly fitted crown, addressing the problem early can save your tooth and prevent more serious issues. If you are experiencing discomfort, consult your dentist for the best treatment options.
FAQ About Tooth Pain Under Crown That Comes and Goes
Why does my tooth hurt under my crown?
Is tooth pain under crown that comes and goes normal?
What does nerve pain under crown feel like?
Can a crowned tooth still get infected?
Why does my crown hurt when I bite down?
How long does tooth pain after crown placement last?
Why does my crown hurt when I put pressure on it?