Why Is My Root Canal Tooth Hurting After Years?

Aug 30, 2024

Although it’s a rare occurrence in endodontic treatments, re-infections happen. If you have a root canal-treated tooth and it starts hurting, you might think, “Why is my root canal tooth hurting after years?” This is the time you least expect it to encounter any issues. So, let’s find out the reason:

Why You Might Need Retreatment After Root Canal?

Even if everything goes well during a root canal, the treated tooth can still have long-lasting sensitivity or get re-infected. The American Association of Endodontists (AAE) explains that certain things can stop a root canal tooth from healing properly:

  • If the dentist misses tiny or hidden canals during the treatment, bacteria might stay inside and cause an infection.
  • After the root canal, a temporary filling is often used to seal the tooth until a permanent filling or crown is placed. If there is a delay in getting the permanent restoration, the tooth is more likely to get re-infected.
  • If saliva bacteria get under the filling before it’s fully sealed, the tooth can become re-infected.
  • Poor oral hygiene can lead to new cavities on the same tooth that had a root canal.
  • A filling or crown on the treated tooth can crack, loosen, or break, allowing a new infection to start.

Symptoms of Failed Root Canal Years Later

According to the American Association of Endodontists (AAE), the following are signs that you should see your dentist:

  • Sensitivity to hot or cold, or pain that lasts after eating hot or cold food
  • Sharp pain when biting or when your teeth touch
  • Constant pain and pressure
  • Swelling in the gums, possibly with a pimple-like bump near the tooth
  • A dull, ongoing ache in the same area

These symptoms suggest there could be a problem with the tooth’s pulp, the inner part of the tooth that was treated during the root canal.

Treatment for Root Canal Tooth That Hurts Years Later

Often, the process starts with root canal retreatment, where the dentist carefully removes any remaining infection. Then, they seal the tooth to block bacteria from getting in, helping to prevent future infections. This gives your tooth a second chance to heal properly.

If needed, your dentist can suggest apical surgery to fix deeper problems or recommend tooth extraction and replacement. Throughout the process, your dentist will provide gentle care and guidance, making sure you feel supported. They may prescribe antibiotics to help control the infection and give you tips on keeping your teeth healthy.

Wrapping Up

Dentists perform a root canal treatment to prevent the tooth infection from spreading. However, at times, the infection can return. Therefore, the question “Why is my root canal tooth hurting years later?” is a common one.

Visit Dr. Ayesha Muzaffar at iCare4Smiles. Our dentist is well-trained in dental implants, root canal therapy, oral surgery, and orthodontics. Call us at (732) 800-9524 for an appointment.

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