Why Does My Tooth Hurt Under a Crown?
Dentist Washington, DC
 A dental crown is designed to protect a weakened tooth and restore comfortable chewing for many years. So when a crowned tooth starts to ache, it is natural to wonder what went wrong. The good news is that the cause can usually be identified and treated, and the tooth can often be saved. At Capital Dental Center, our dentists help patients in Downtown Washington, DC understand why crowned teeth become uncomfortable and what can be done to bring lasting relief.
What a Dental Crown Does and Does Not Do
A crown is a custom cap that covers the entire visible portion of a tooth above the gumline. It is often placed after a large filling, crack, or root canal. While the crown itself is made of durable material such as porcelain, zirconia, or metal alloy, the natural tooth underneath is still living tissue unless it has had a root canal. That means the tooth beneath the crown can still develop decay, become irritated, or be affected by gum problems.
Common Reasons a Crowned Tooth Hurts
Normal Sensitivity After Placement
Mild tooth pain or sensitivity can happen after crown placement, especially with pressure or with hot or cold foods in the first few days to weeks. During crown preparation, removing some outer tooth structure can temporarily irritate the tooth nerve. This usually fades gradually, and desensitizing toothpaste may help patients with sensitive teeth during healing. If symptoms last more than two weeks, worsen instead of improving, or include persistent pain or throbbing tooth pain, it is worth having the tooth evaluated.
A High Bite
If a crown sits even slightly higher than the surrounding teeth, it may be an improperly fitted crown that throws off bite alignment and takes on more than its share of chewing force every time you bite down. This can cause soreness and inflammation of the ligament that holds the tooth in place. That kind of bite misalignment can also lead to dental crown pain, tooth pain when chewing, and even jaw soreness. Fortunately, a quick bite adjustment to reshape the biting surface often resolves the discomfort within days, though if the crown hurts and the pain does not improve, the dentist should reassess the fit.
Decay at the Crown Margin
The margin is the edge where the crown meets the natural tooth, usually near the gumline. Over time, plaque and bacteria can collect in this area, especially with poor oral hygiene, where the crown covers the tooth near the gumline. A loose crown can also let food, saliva, and bacteria underneath, increasing the risk of pain or infection. Tooth decay that starts where the crown meets the natural tooth can travel underneath the crown and affect the underlying tooth. Regular checkups and dental X-rays help our team catch this type of decay early, before it reaches the nerve.
Nerve Inflammation or Infection
Teeth that need crowns have often been through a lot, including deep fillings, fractures, or repeated dental work. The tooth nerve may still be alive under the crown and can become inflamed from deep decay, prior dental work, or crown preparation. Signs may include lingering temperature sensitivity, throbbing pain, swelling, or a small bump on the gums. Sensitivity to hot or cold, night discomfort, or nerve pain can point to this problem. When the nerve is involved, root canal treatment is often the best way to relieve pain and preserve the tooth by removing the affected nerve tissue when the pulp cannot recover. It can often be completed through the existing crown. If a crown hurts years after it was placed, that usually points to a new issue such as nerve irritation or infection rather than the original procedure, and a loose crown can allow bacteria to enter and cause infection.
A Cracked Tooth or Crown
Dental crown tooth pain can happen when a crack forms in the crown or the underlying tooth, causing sharp pain when biting or releasing pressure. Cracks can develop from teeth grinding, chewing ice, or injury. Teeth grinding creates repeated pressure that can lead to cracks and pain. Treatment may involve replacing the crown, removing it to evaluate the underlying tooth, a root canal, or in severe cases, care that also addresses the tooth root, including removing the tooth.
Gum Recession and Gum Disease
When gums pull back from a crowned tooth, the exposed area can become tender from gum recession or gum inflammation. Crown-related pain here may happen when poor oral hygiene irritates the gums or when recession exposes the tooth root. Roots are not covered by protective enamel, so they tend to be more sensitive to temperature and touch. Gum disease can also create inflammation and bone loss around the tooth, leading to tenderness or looseness. In more severe cases, treatment may include professional cleaning, gum treatment, or crown replacement.
Clenching and Grinding
Many people clench or engage in teeth grinding during sleep or periods of stress without realizing it. This habit places heavy, repeated force on crowned teeth and the supporting structures around them. Some people experience tooth pain under a crown from this pressure, especially when they wake up. It can lead to soreness, jaw tension, and damage to crowns and natural teeth. A custom night guard is a simple and effective way to protect your smile, help protect crowns, and reduce crown-related tooth pain over time.
How Our Dentists Find the Cause
Diagnosing pain under a crown requires a careful, step-by-step approach. Our dental team will ask about your symptoms, including when the pain started and what triggers it. We then examine the crown, the surrounding gums, and your bite. Digital X-rays reveal decay or infection that cannot be seen during a visual exam. We may also perform simple tests, such as tapping the tooth, checking your response to cold, or having you bite on a special instrument to detect cracks. Once we understand the cause, we will explain your options clearly.
Treatment Options for a Painful Crowned Tooth
The right crown treatment depends on what is causing the crown-related pain. A high bite may only need a minor adjustment.
Sensitivity from exposed roots may improve with desensitizing products for sensitive teeth, gum care, and avoiding foods or drinks that are very hot or cold.
Decay at the margin may require removing and replacing the crown so the decay can be cleaned out and the underlying tooth properly restored, and a loose crown may need to be re-cemented or replaced.
Nerve inflammation or infection is typically treated with a root canal.
Grinding-related pain is often managed with a night guard.
To relieve tooth crown pain while waiting for care, try warm saltwater rinses to reduce inflammation and support healing, a cold compress on the cheek to minimize swelling and numb pain, or over-the-counter pain relievers such as ibuprofen. We always favor the most conservative option that protects your natural tooth.
When to Call Our Office
Some mild sensitivity after a new crown is expected, but tooth crown pain should prompt a call when symptoms go beyond normal healing. Contact our office if you notice worsening pain, sensitivity that lasts more than a few weeks, throbbing or pain that keeps you awake, swelling in the face or gums, a bad taste near the tooth, or a crown that feels loose. Persistent pain should also be checked promptly, especially if it is getting worse. A loose crown, severe swelling, fever, pus, or trouble swallowing or breathing can signal infection and require urgent dental care. Prompt care often means simpler treatment and a better chance of saving the tooth.
Protecting Your Crown for the Long Term
Good daily habits and consistent dental care at home go a long way toward keeping crowned teeth healthy and comfortable and helping prevent crown pain. Brush twice a day with a soft-bristled toothbrush, paying close attention to the gumline around your crown, because a crown covers the visible part of the tooth while the gumline and surrounding tooth structure still need careful cleaning to help prevent tooth decay. Floss or use interdental cleaners daily to remove plaque from between teeth and along the crown margin. If the area feels like sensitive teeth after hot or cold foods or drinks, use a desensitizing toothpaste and stick with regular checkups. Avoid chewing ice or hard candy, and wear a night guard if you grind your teeth. Keep up with routine dental checkups and cleanings so our team can monitor your crown and address any concerns early.
Get Relief for Crown Pain in Downtown Washington, DC
A crowned tooth should feel just like a natural tooth. If yours is sore, sensitive, or simply does not feel right, our dentists at Capital Dental Center are here to help you find the cause and the solution. Call us today at 202-978-8778 to schedule an appointment. |
