Many people fear Root Canal Treatment (RCT), often because of myths and misconceptions. In reality, modern root canal treatment is a safe, comfortable, and effective procedure that helps save natural teeth and eliminate infection.The biggest mistake patients make is waiting too long before seeking treatment. Recognizing the warning signs early can help prevent severe pain, swelling, and even tooth loss.1. Persistent Tooth PainOne of the most common signs of an infected tooth is persistent pain. The pain may be constant or may come and go. It can worsen while chewing, biting, or consuming hot and cold foods.If tooth pain lasts for several days, it should never be ignored.2. Sensitivity to Hot or ColdDo you experience a sharp or lingering pain when drinking tea, coffee, or cold beverages?Sensitivity that remains for several seconds or minutes after the stimulus is removed may indicate inflammation or infection of the tooth pulp.3. Swelling Around the ToothSwelling in the gums near a tooth may indicate an underlying infection. Sometimes patients notice a small pimple-like swelling on the gums that may discharge pus.This is often a sign that the infection has spread beyond the tooth root.4. Pain While ChewingIf biting or chewing causes discomfort, the infection may have reached the tissues surrounding the tooth root.Pain while chewing should be evaluated promptly by a dentist.5. Tooth DiscolorationA tooth that gradually turns grey, brown, or darker than neighboring teeth may indicate damage to the pulp tissue inside the tooth.Such teeth often require evaluation for root canal treatment.6. Deep Decay or Large CavitiesWhen dental decay progresses deep into the tooth, bacteria can reach the pulp and cause infection.Early treatment can often prevent complications and save the tooth.7. Previous Dental TraumaEven if a tooth was injured years ago, trauma can sometimes cause delayed damage to the pulp.If a previously injured tooth develops pain, discoloration, or swelling, it should be examined immediately.Benefits of Root Canal Treatment• Eliminates infection and pain• Preserves your natural tooth• Restores normal chewing function• Prevents the spread of infection• Avoids unnecessary tooth extractionDon't Ignore the SignsEarly diagnosis can make treatment simpler and more predictable. If you experience any of the symptoms mentioned above, consult your dentist for a proper examination and X-ray evaluation.Modern root canal treatment is designed to save teeth—not remove them.Dr. Mohit GautamBDS, MDS (Endodontist)Target Dental Hospital, Chhatarpur, New Delhi