Save and restore your teeth with our root canal treatments. Root Canal Treatment, Root Canal Therapy or Endodontics is a procedure that is designed to save teeth by removing the injured or diseased nerve from inside the tooth. Root canal treatments are generally required, when the tooth dies as a result of extensive tooth decay which had been left untreated. Although the thought of a root canal treatment usually makes people feel uncomfortable, the pain relief options and techniques used at High Street Dental Practice ensure you are comfortable and the procedure is as painless as possible. X-rays are taken during the procedure and sometimes a dental crown may be required after in order to restore its strength and appearance.