Why Does My Crown Hurt? Common Causes and How to Find Relief

Medically reviewed by Dr. Eugene Bernstein, DDS, Practice Leader, General & Cosmetic Dentistry | 25+ Years Experience | Last Updated: May 2026

Direct answer: A dental crown can hurt for one of eight reasons: a high (improperly aligned) crown, irritation of the nerve under the crown (pulpitis), a cracked tooth or cracked crown, recurrent decay at the crown margin, gum infection at the crown’s edge, teeth grinding (bruxism), or referred sinus pressure on an upper molar. Mild sensitivity for one to two weeks after placement is normal. Sharp pain when biting, throbbing pain that wakes you at night, swelling, or pain that returns months or years later all warrant a same-day call to the dentist.

Pain in the first 1 to 2 weeks: usually normal post-procedure sensitivity, manage with soft food and OTC pain relief.
Sharp pain when biting down: almost always a high crown, a 5-minute chairside bite adjustment fixes it.
Pain months or years later: not normal, signals decay, a crack, or pulpitis that needs imaging and likely a root canal or replacement.

Is Crown Pain Normal? What’s Expected vs What’s a Warning Sign

Some level of sensitivity right after a dental crown is cemented is expected. The tooth was just shaped, the surrounding gum was retracted for impressions, and the cement is still settling. Most patients describe a mild ache when biting on the crown, brief sensitivity to cold, or a feeling that the tooth is “different.” That settles within one to two weeks for the large majority of patients.

Pain becomes a warning sign when it crosses into one of these patterns: sharp pain that spikes when you bite or chew, throbbing pain that wakes you up, sensitivity to cold or heat that lingers more than 30 seconds, swelling around the gum, a bad taste in your mouth (which can mean infection), or pain that started months or years after the crown was placed and has nothing to do with the original procedure. Any of those means call the office, not wait it out.

Pain Timeline: How Long Should a Crown Hurt After Placement?

This is the question patients ask most often. The honest answer is “it depends on what’s causing the pain,” and the timeline tells us a lot. Use the table below as a rough guide, then call us if anything in the right column applies to you.

Time since crown placement	What’s normal	What’s a warning sign
1 to 3 days	Mild ache, gum tenderness, brief cold sensitivity	Sharp shooting pain, swelling, a high feeling when biting
1 week	Sensitivity tapering, no pain on biting normal foods	Pain that has not improved at all, throbbing at night
2 weeks	Pain mostly resolved, occasional cold twinge	Persistent sharp pain, swelling, bad taste
1 month	No pain expected	Any pain that is new or worsening, sensitivity to heat (often signals pulpitis)
3 to 6 months	No pain expected	New pain, pain when chewing, dull ache that comes and goes
1 year or more	No pain expected	New pain often means recurrent decay at the margin, a cracked tooth, or a failing crown

The rule of thumb: pain that gets better day by day is normal recovery. Pain that stays the same or gets worse, or appears suddenly long after the crown was placed, is a signal we need to see you.

Why Does My Crown Hurt When I Bite Down or Chew?

Bite-specific pain is the single most common complaint we hear in the first two weeks after a crown. There are a few different causes and they each feel slightly different.

The crown is high (the most common cause): if the crown sits even a fraction of a millimeter higher than your other teeth, you hit it first when you close. That single tooth absorbs all the bite force. The pain is sharp, instant when you bite, and goes away when you stop biting. The fix is a 5-minute chairside adjustment with articulating paper and a polishing bur.
Pulpitis (nerve irritation under the crown): when a tooth is shaped for a crown, the nerve inside can become temporarily inflamed. The pain is sharp on biting and lingers, and may include cold sensitivity. Most reversible pulpitis settles within 2 to 4 weeks. If heat triggers the pain or it wakes you at night, the pulpitis is irreversible and a root canal is needed.
Cracked tooth under the crown: a crack in the tooth structure under the crown causes a sharp, electric pain on biting that disappears the moment you release. This is the classic “cracked tooth syndrome” presentation. It almost always needs a root canal, sometimes followed by a new crown or, in severe cases, extraction.
Loose or cracked crown: if the crown itself is loose or cracked, the slight movement when you bite irritates the tooth and surrounding gum. You may also notice the crown “shifts” or feels different. Replacement is usually the answer.
Bruxism (grinding or clenching): patients who grind at night put 5 to 10 times the normal force on a crown every night. The pain is often worst in the morning and may include jaw soreness. A nightguard usually resolves it.
Sinus pressure on upper molar crowns: upper back molars sit close to the maxillary sinus. Sinus inflammation from a cold or allergies can refer pain to the crowned tooth, especially when biting or bending forward. The pain is dull, comes and goes, and resolves when the sinus issue clears.

When a patient calls a week after a crown is cemented and tells me “it hurts when I chew,” the first question I ask is whether it’s the crown that hurts or the tooth under the crown. With a high crown, the bite adjusts in two minutes in the chair and the pain stops the same day. With a cracked tooth or pulpitis under the crown, no amount of bite adjustment will fix it, and we need to talk about a root canal or replacement. The timeline tells us which one we are looking at.
Dr. Eugene Bernstein, DDS, Practice Leader, Gentle Dental of NJ (NYU College of Dentistry, 25+ years)

8 Common Causes of Crown Pain

Beyond the bite-specific causes above, here are the eight reasons a crowned tooth can hurt at any point in its life. Several can overlap, and the timeline of when the pain started usually narrows it down.

Improper fit or high crown. Most common cause in the first two weeks. Pain on biting, fixed with bite adjustment.
Pulpitis (nerve inflammation). The shaped tooth’s nerve is irritated. Reversible pulpitis settles, irreversible pulpitis needs a root canal.
Cracked tooth under the crown. Sharp pain on biting that disappears immediately on release. Often needs root canal or extraction.
Cracked or loose crown. Crown moves slightly when biting. Usually means replacement.
Recurrent decay at the crown margin. New cavity at the edge where the crown meets the natural tooth. Pain comes weeks to years after placement.
Gum infection or inflammation. Bacteria collects at the crown margin. Includes redness, bleeding, and tenderness when chewing. Inflammation at the gum line is a treatable warning sign.
Bruxism (teeth grinding). Excess force on the crown, often at night. Worst in the morning, often with jaw soreness.
Sinus pressure (upper molar crowns). Referred pain from a sinus issue, especially when bending forward or chewing.

Recurrent decay is one of the most common reasons a crown that was comfortable for years suddenly hurts.

What to Do Right Now if Your Crown Hurts

If you cannot reach the office today, here are the steps that buy time without making the situation worse.

Rinse with warm salt water (1 teaspoon salt in a cup of warm water) two to three times a day. This helps gum inflammation and removes any food caught at the crown margin.
Take an over-the-counter pain reliever as directed. Ibuprofen is generally more effective than acetaminophen for inflammatory dental pain.
Eat soft foods and chew on the opposite side. Avoid sticky candy, ice, hard nuts, and crunchy foods that load the crown.
Use toothpaste designed for sensitive teeth for cold or heat sensitivity. It will not fix structural issues but it can take the edge off.
Sleep with your head slightly elevated. This reduces pressure on upper teeth and can ease pulpitis-style pain at night.
Apply a cold compress on the cheek for 15 minutes at a time if there is swelling. Do not apply heat to the face if there is any chance of infection.
Call the dentist same-day if there is swelling, fever, throbbing pain that wakes you at night, a bad taste, or pain that came on suddenly years after the crown was placed. These are not “see how it goes” situations.

When to Call the Dentist (and What They Will Do)

Once you are in the chair, the dentist runs a focused exam: tap each cusp with a mirror handle to find the painful spot, ask about cold and heat triggers, take a periapical x-ray to look at the root and the bone, and check the bite with articulating paper. From there, the treatment depends on the cause.

Bite adjustment: if the crown is high, a 5-minute chairside adjustment usually solves the pain that day. Often included as follow-up at no charge after a recent crown placement.
Root canal: if the nerve under the crown is irreversibly inflamed or infected, a root canal removes the nerve and seals the canals. The existing crown can sometimes be drilled through and resealed; sometimes a new crown is needed. Industry-standard root canal cost on a molar runs roughly $700 to $1,500, plus crown rebuild.
Crown replacement: if the crown is cracked, loose, or has decay at the margin that has compromised the seal, a new crown is the answer. Industry-standard fees run $1,000 to $3,000 per crown depending on material. When crowns need to be replaced covers the full decision framework.
Nightguard: if bruxism is the cause, a custom nightguard protects both the crown and the natural teeth. Custom nightguards run roughly $300 to $700.
Treat gum infection: a deep cleaning around the crown margin, antimicrobial rinse, and improved home care usually resolves it within a few weeks.
Refer for sinus issue: if the pain is referred from the sinus, the right call is to see your physician for the sinus issue first; the tooth pain usually clears with the sinus.

At Gentle Dental of NJ we discuss exact fees, insurance coverage, and financing options at the consultation. Post-placement sensitivity is normal for the first two weeks, but persistent or sharp pain past that needs a same-day evaluation.

Why Crown Pain Months or Years Later Is a Different Story

If a crown was comfortable for two years and now it hurts, the cause is almost never the original procedure. The four leading reasons crowns start hurting later in life:

Recurrent decay at the crown margin. The most common reason a long-stable crown begins to ache. The cement seal at the edge has broken down, bacteria have moved in, and a new cavity is forming under the crown. Catching this early often saves the tooth with a new crown. Catching it late may require a root canal or extraction.
A new crack in the tooth. Years of normal chewing, plus any habit like ice-chewing or pen-biting, can crack the tooth structure under the crown. The pain is sharp on biting and disappears on release.
Pulpitis from years of micro-trauma. The nerve under a long-stable crown can slowly become irreversibly inflamed. Heat sensitivity, throbbing at night, and lingering pain after cold are the signs.
Failing crown structure itself. Porcelain can chip, PFM crowns can develop a gray gum-line metal margin, and any crown can lose its cement seal. Most crowns last 10 to 15 years; zirconia often lasts longer. Crown lifespan by material covers this in detail.

If your crown is more than 10 years old and has started hurting, expect the conversation to be about replacement, possibly with a root canal first. Crowns are durable but not permanent; the right plan depends on what x-rays show under the crown.

Frequently Asked Questions

Why does my crown hurt?

The eight most common causes are a high or improperly fitted crown, pulpitis (nerve inflammation in the tooth under the crown), a cracked tooth, a cracked or loose crown, recurrent decay at the crown margin, gum infection, bruxism (teeth grinding), and referred sinus pressure on upper molars. The timeline of when the pain started usually narrows down which one you have.

Is it normal for a crown to hurt?

Mild sensitivity for the first one to two weeks after placement is normal, especially when biting or with cold. Pain that lasts more than two weeks, gets worse, wakes you at night, or starts months or years after the crown was placed is not normal and warrants a dentist visit.

Why does my crown hurt when I bite down?

Bite pain is most often caused by a high crown (the most common cause in the first two weeks), pulpitis, a cracked tooth, or a loose crown. A high crown is fixed in five minutes with a chairside bite adjustment. The other three usually need a root canal, a new crown, or both.

How long should crown pain last after placement?

For most patients, mild sensitivity resolves within one to two weeks. Pain that has not significantly improved by two weeks, or pain that gets worse rather than better, should be evaluated. Sharp pain on biting that started immediately after placement usually means the crown is high and needs a quick adjustment.

Why does my crown hurt years after it was placed?

Late-onset crown pain almost always signals a new problem, not the original procedure. The four leading causes are recurrent decay at the crown margin, a new crack in the tooth, slow-developing pulpitis under the crown, and the crown itself reaching the end of its lifespan (typically 10 to 15 years for porcelain and PFM, longer for zirconia).

¿Por qué me duele la corona dental al morder?

El dolor al morder con una corona dental se debe casi siempre a una de cuatro causas: una corona “alta” (mal alineada con la mordida), inflamación del nervio bajo la corona (pulpitis), un diente fracturado bajo la corona, o una corona suelta o agrietada. Si la corona está alta, un ajuste de cinco minutos en el consultorio resuelve el dolor el mismo día. Si el problema es pulpitis o una fractura, suele requerir una endodoncia (tratamiento de conducto) o el reemplazo de la corona. Llame a Gentle Dental of NJ al (973) 817-8888 para una evaluación.

Can a loose crown cause pain?

Yes. A loose crown allows slight movement when chewing, which irritates the tooth and surrounding gum. The pain is often a dull ache plus sensitivity to cold or air, sometimes with a clicking or shifting sensation. Replacement (or, in some cases, re-cementing if the crown and underlying tooth are intact) is the standard fix.

When should I be concerned about ongoing crown pain?

Call the dentist same-day if any of these apply: pain that wakes you at night, pain that worsens rather than improves, swelling around the gum, fever, a bad taste in your mouth, sharp pain on biting that has not resolved by the second week, or new pain in a crown that was previously comfortable for months or years. These patterns suggest infection, a crack, or pulpitis that should not wait.

If your crown looks dull or discolored rather than painful, see how to whiten or polish a discolored crown. If your crown has come loose or fallen out completely, see what to do if your crown falls out.

Visit Gentle Dental of NJ in Newark, NJ

290 Ferry St B2, Newark, NJ 07105 (Ironbound)
(973) 817-8888 | Schedule a Consultation
Serving Newark, Ironbound, East Ferry, Belleville, Kearny, Harrison, North Ironbound, and Downtown Newark. Same-day bite adjustments, root canal evaluations with our endodontist Dr. Mariya Rozenblum, and crown replacements are available with Dr. Eugene Bernstein.

Disclaimer

This information is provided for educational purposes and is not a substitute for professional dental advice, diagnosis, or treatment. Please schedule a consultation with our team to discuss your individual needs.