Some people get surprised when they experience tooth pain under a crown that comes and goes. They often believe that their tooth is no longer vulnerable to dental problems because it has a dental crown. However, this is far from the truth. Your tooth under a crown is as susceptible to dental ailments as any other tooth. Several factors can trigger tooth sensitivity, pain, or bite problems after crown placement. This blog will address 5 reasons why you experience dental crown toothaches.

5 Common Reasons Why Tooth Pain Under The Crown Comes And Goes?

Reason 1: Infection

If you didn’t undergo a root canal before your crown placement, the tooth still has nerves in it. Your crown might put pressure on a traumatized nerve. This usually causes an infection that can be quite painful. Alternatively, you can get an infection due to an old filling’s leakages. This can result in bacteria infecting the nerve root under a crown.
Signs of infection may include:

  • Gum swelling
  • Pain when you bite down
  • Fever
  • Temperature sensitivity

Reason 2: Cavities

Some people assume that cavities are no longer an issue because they have a dental crown. However, since the tooth under a crown is still alive, you may get a new cavity due to improper dental hygiene. Dental plaque buildup causes a cavity, which can lead to tooth decay if not treated on time. The cavity can sufficiently damage and infect the tooth, which will require root canal therapy. So the best way to avoid cavities under a crown is to follow a good oral hygiene routine and visit the dentist regularly.

Reason 3: Tooth Fracture Due To Facial Trauma

A cracked crown or tooth under a crown can cause discomfort and mild pain. You may also experience tooth sensitivity because of the crack. Contact the oral and maxillofacial surgeon for facial trauma treatment if you notice that your tooth or crown is dislodged, broken off, or cracked.

Reason 4: Recessed Gum Line

If you experience sensitivity in your crown tooth, it could be due to the recessed gum line. The gums around the tooth can recede with time. You can experience gum recession if you perform forceful tooth brushing. This can make your oral condition vulnerable to plaque buildup and even lead to gum infection. Check your crowned tooth if you want to know whether you’re experiencing gum recession. Notice if you see a yellow area next to your white crown. If this is the case with you, you may need a replacement crown.

Reason 5: Improper Fit

You may experience tooth pain under a crown if your crown doesn’t fit correctly. An improper fit can also affect your smile or bite. A dental crown should adjust perfectly to your bite like your other teeth. So if your bite feels off, get it evaluated before it leads to headaches and jaw pain.


Your crown should not cause pain, and feel comfortable at all times. However, tooth pain under a crown that comes and goes shouldn’t be ignored. If you experience such toothaches underneath a crown, it may be due to infections, tooth fractures, cavities, or improper fit. If you experience any of these dental issues, contact the oral surgeon in Houston. We will check your oral condition and recommend solutions if required. Call now at 281-800-8852 for more information.

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