A root canal is a dental procedure used to treat infection within the tooth's pulp. When a tooth becomes severely decayed or injured, the pulp (the soft tissue inside the tooth) can become infected, leading to pain and swelling. A root canal removes the infected tissue and seals the tooth to prevent further infection. Despite the common misconception, root canals are generally no more painful than getting a filling, thanks to modern anesthetics. This procedure can save a tooth that would otherwise need to be extracted, allowing you to preserve your natural smile and continue eating and speaking comfortably