Persistent Toothache: A severe and continuous toothache is one of the most common symptoms indicating the need for a root canal. This pain may worsen when biting down or applying pressure to the affected tooth.

Sensitivity to Hot or Cold: Increased sensitivity to hot or cold temperatures, even after the stimulus has been removed, can be a sign of nerve damage and the need for root canal treatment.

Gum Swelling or Tenderness: Swelling or tenderness in the gums surrounding the affected tooth may indicate an infection or inflammation within the tooth's pulp, necessitating root canal therapy.

Discoloration of the Tooth: Darkening or discoloration of the affected tooth may signal damage to the internal structures, such as the pulp, requiring intervention through root canal treatment.

Pain When Chewing: Pain or discomfort when chewing or applying pressure to the affected tooth can be indicative of underlying issues, such as infection or nerve damage, warranting evaluation by a dentist for potential root canal therapy.