Even without its nerve, a tooth can become infected again, sometimes with the infection being difficult to identify. After a root canal, some patients experience persistent pain or discomfort, signs that bacteria may have developed inside the tooth or around the root, despite the initial procedure.
The pain is not always sharp. It can be dull, throbbing, or occur when chewing. Localized swelling of the gums, sometimes of the face, as well as a persistent bad taste in the mouth or unusual breath are other warning signs.
From local symptoms to general signs
As the infection progresses, it may be accompanied by broader symptoms such as fever, unusual fatigue, or a general feeling of malaise. These symptoms reflect the body's reaction to an infection that is no longer strictly confined to the affected tooth.
Treatment begins with a prompt consultation with a dentist. Depending on the situation, antibiotic treatment, a revision of the root canal, or, in the most severe cases, tooth extraction may be considered. Rigorous oral hygiene and regular checkups remain the best ways to prevent this type of complication.
