Some sensitivity after getting a dental crown is completely normal and typically resolves within one to two weeks. But pain that lingers beyond that window, gets worse over time, or shows up in a crown you’ve had for years is your tooth telling you something needs attention. The type of pain you’re feeling, and when it happens, can help you figure out whether you’re dealing with routine healing or a real problem.
What Normal Post-Crown Sensitivity Feels Like
After a crown is placed, the tooth underneath has been filed down and reshaped, which irritates the nerve inside. Most patients experience sensitivity for roughly one to two weeks. This usually shows up as a brief zing when drinking something hot or cold, or a mild ache after chewing. By the two-week mark, most people report significant improvement or complete resolution.
During this healing window, the discomfort should be mild and manageable with over-the-counter pain relievers. Ibuprofen and acetaminophen can be taken together for dental pain, and this combination is more effective than either one alone. The key markers of “normal” are that the sensitivity is brief (lasting only seconds after a trigger), gradually improving day to day, and doesn’t wake you up at night.
A “High” Crown Is the Most Common Fixable Cause
If your crown hurts specifically when you bite down, the most likely culprit is a bite that’s slightly off. Even a fraction of a millimeter matters. When a crown sits too high, that tooth hits before the others every time you close your mouth, absorbing far more force than it should. This puts excessive pressure on the ligament that holds your tooth in its socket, causing pain that can feel sharp and immediate when you chew.
Patients often describe this as the crown feeling “off” or like their teeth don’t come together right. Left unadjusted, a high crown can lead to jaw soreness, headaches, and escalating pain over time. The fix is simple: your dentist grinds down the high spot in a quick appointment, often taking just minutes. If biting pain started right after your crown was placed and hasn’t improved, this is the first thing to rule out.
When the Nerve Inside Is in Trouble
The process of preparing a tooth for a crown can sometimes push the nerve past its ability to recover. This is called irreversible pulpitis, and it means the tissue inside the tooth is inflamed beyond repair and will eventually die. The hallmark symptom is sensitivity to heat or cold that lingers for more than a few seconds after you remove the trigger. Normal post-crown sensitivity flashes and fades. Nerve damage throbs and hangs around.
This pain can be sharp, aching, or throbbing, and it sometimes radiates along your jaw. If the nerve tissue dies completely, the sensitivity to temperature may actually disappear, which can feel like improvement. But the tooth will still hurt when tapped or pressed. At that point, a root canal is needed to remove the dead tissue. The crown can usually stay in place, with the root canal performed through a small hole drilled in the top, which is then sealed afterward.
Gum Pain Around the Crown
Not all crown pain comes from the tooth itself. The gums around a crown can become a source of persistent soreness, especially when the edge of the crown sits below the gum line. Crowns placed with margins that dip under the gums are associated with greater plaque buildup, chronic inflammation, and more bleeding during brushing and flossing. The gum tissue may look red, puffy, or tender right at the crown’s border.
Good oral hygiene can manage mild gum irritation. Flossing carefully around the crown and using an antiseptic rinse helps keep plaque from accumulating at that junction. If the gums stay inflamed despite consistent cleaning, the crown’s fit or contour may need to be evaluated.
Pain in a Crown You’ve Had for Years
A crown that was fine for months or years and suddenly starts hurting points to a different set of problems. The most common is new decay forming at the border where the crown meets the natural tooth. The tooth underneath is still alive and still vulnerable to cavities, particularly at that seam. Decay can creep underneath the crown where you can’t see it, causing persistent, dull pain that worsens over time.
Gum recession is another frequent cause. If your gums have pulled back, they can expose the root surface below the crown’s edge. Root surfaces lack the hard enamel coating that protects the rest of your tooth, so they’re far more sensitive to temperature and touch. Harsh brushing habits accelerate this recession. If you notice a visible gap between your crown and your gum line, or a dark line at the base of the crown, that exposed area is likely what’s causing your discomfort.
Signs of Infection
Pain that’s intense, constant, and accompanied by swelling may indicate an abscess, which is a pocket of infection at the tooth’s root. Warning signs include swelling in your face, cheek, or neck; tender or swollen lymph nodes under your jaw; a foul taste or odor in your mouth; and throbbing pain that doesn’t respond well to over-the-counter medication. If an abscess ruptures on its own, you may notice a sudden rush of salty, bad-tasting fluid followed by temporary pain relief.
An abscess won’t resolve without treatment. If you develop a fever along with facial swelling, or if swelling makes it difficult to breathe or swallow, that’s an emergency. The infection can spread into the jaw, throat, and neck, and requires immediate care.
Allergic Reactions to Crown Materials
In rare cases, pain and irritation around a crown stem from an allergy to the metal alloy used in the restoration. This is most common with porcelain-fused-to-metal crowns that contain nickel or other base metals. The telltale sign is gum inflammation that’s localized specifically around the crowned tooth rather than spread across multiple teeth. The tissue looks red, swollen, and shiny, and it may bleed easily. Some people also report burning, tingling, or itching sensations where the cheek or tongue contacts the crown. If gum inflammation around a metal crown persists despite good hygiene and proper fit, an allergy is worth considering. Switching to an all-ceramic or zirconia crown resolves the issue.
A Quick Guide by Pain Type
- Brief sensitivity to hot or cold (fades in seconds): Normal healing if the crown is less than two weeks old.
- Sharp pain when biting down: Likely a high bite that needs adjustment.
- Lingering sensitivity to temperature (lasts more than a few seconds): Possible nerve inflammation that may need a root canal.
- Sore, red, or bleeding gums at the crown’s edge: Gum irritation from the crown margin or, rarely, a metal allergy.
- New pain in an old crown: Decay under the crown or gum recession exposing the root.
- Throbbing pain with swelling or fever: Possible abscess requiring prompt treatment.