A root canal, also known as endodontic therapy, is a dental procedure used to save a tooth that is severely decayed or infected. It involves removing the infected pulp from inside the tooth, cleaning and disinfecting the interior, and sealing it to prevent further infection. This procedure is typically performed by an endodontist, a dental specialist. Despite its reputation for causing anxiety, advancements in dental techniques and anesthesia have made endodontic therapy a relatively comfortable and effective solution for preserving natural teeth and relieving dental pain.