You may need a root canal if you experience several key symptoms indicating infection or damage to the tooth's pulp (the nerves and blood vessels inside the tooth). Common signs include:

• Severe, persistent tooth pain, especially when chewing or biting, which may radiate to your face or jaw

• Sensitivity to hot and cold foods or drinks that lingers even after the stimulus is removed

• Discoloration or darkening of the tooth, often grayish-black, indicating dying pulp

• Swelling, tenderness, or pimples (abscesses) on the gums near the affected tooth

• A chipped, cracked, or fractured tooth that allows bacteria to infect the pulp

• Persistent bad breath or a bad taste in your mouth associated with infection

• Loose or mobile teeth due to infection spreading to supporting structures

• Additional signs of infection such as fever, facial swelling, or pain spreading to the jaw

Because these symptoms can overlap with other dental issues, the only way to confirm if you need a root canal is to visit a dentist who will evaluate your symptoms, perform an examination, and likely take X-rays to assess the extent of infection or damage

. Delaying treatment can lead to worsening infection, abscess formation, bone loss, or tooth loss, so prompt dental consultation is advised if you notice these signs

. Root canal treatment involves removing the infected pulp, cleaning the inside of the tooth, and sealing it to save the tooth and prevent further infection