With proper care, even teeth that have had root canal treatment can last a lifetime.
But sometimes, a tooth that has been treated doesn’t heal properly and can become painful or diseased months or even years after treatment.
An additional procedure may be able to support healing and save your tooth.
What are the symptoms of a failed root canal?
Root Canal Failure Symptoms
Signs and symptoms of failed root canal therapy include sensitivity to cold or hot, swelling, and/or pain from chewing. Follow-up with the dentist or endodontist is necessary to determine further treatment to resolve the symptoms.
Can a tooth with a root canal hurt years later?
In most cases, the sensitivity and discomfort associated with a root canal should go away within a few days. If it does not get better, or if the pain is severe or unrelieved by home measures, it is important to call the endodontist or dentist for an evaluation.
Can a tooth that had a root canal get infected?
If a root canal becomes infected again after a root canal has been done, it’s often because of a problem near the apex of the root. Your dentist can do an apicoectomy to fix the problem so the tooth doesn’t need to be extracted. In many cases, a second root canal treatment is considered before an apicoectomy.
Why is my tooth still sensitive after root canal?
One of the goals of a root canal is complete nerve removal and therefore the tooth itself will not be sensitive, but the procedure can cause irritation to the surrounding tissue resulting in sensitivity. You can also have sensitivity after a root canal from any swelling or inflammation from a pre-existing infection.