HomeWHENWhen I Bite Down My Tooth Hurts

When I Bite Down My Tooth Hurts

A number of possible factors can lead to this kind of dental pain.

Cavity

A cavity, which is basically a hole in your tooth, is often responsible for this kind of pain and sensitivity. Cavities often develop before you feel or see any noticeable symptoms.

Malocclusion

The way your teeth meet when your jaws come together is called occlusion. When your teeth don’t fit together quite right, they can get worn or cause pain in your teeth when you bite, or even cause pain in your jaw. This is called malocclusion.

Injury to the tooth

You may not even realize that you have a cracked tooth until you bite down and feel a sharp pain when you release the bite. The pain may disappear quickly once you let up, or it might come and go.

Other symptoms of a cracked tooth include a sensation that feels like something’s caught between your teeth (even if it isn’t), and pain when eating and drinking. But some people don’t experience any symptoms at all.

Periodontitis

Research suggests that periodontitis, which is a serious infection of the gums that starts with inflammation called gingivitis. This can cause pain, especially if you already live with other inflammatory conditions like arthritis.

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You may experience:

  • red, tender or bleeding gums
  • a build-up of plaque
  • bad breath
  • pain

Recessed gums or exposed root

Receding gums are a type of periodontal disease, also known as gum disease.

When your gums begin to pull back from your teeth, they expose more of the tooth surface and can even leave part of the root exposed. This can make your tooth very sensitive and even painful to touch. It’s more common in adults over 40.

Nasal or sinus congestion

The roots of your upper teeth are very close to your sinuses, so any extra pressure, congestion, or an infection in that area might be responsible, especially if several of your teeth ache rather than just one.

This pain is also called sinus toothache, and it’s usually felt in the upper posterior teeth that are near the sinuses.

Loose filling or crown

A loose filling or crown can cause some pain when you bite down. When a filling is loose, bacteria can creep beneath it and irritate your tooth and possibly also the nerve.

Pulp necrosis

Damage or death of the pulp tissue (pulp necrosis) inside your tooth can also cause pain. But that’s not the only possible sign. In the early stages, your tooth may also be very sensitive to heat, cold, and foods that are very sweet, so you may feel a tinge of pain when eating.

Abscess

If your pain not only lingers but worsens, and you develop some swelling in your gums, you may have an abscessed tooth.

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