Root canal symptoms often come in two waves. When the pulp becomes infected, early signs that you might need endodontic treatment include toothache, sensitive teeth to hot and cold foods, and pain when eating and drinking. When the infected pulp dies, these symptoms may temporarily subside – but don’t be tempted to put off seeing your dentist! When the infection spreads to the root canal, those early symptoms come back – this time accompanied by pain and swelling to the face and gums, and pus around the infected tooth, which will often appear dark in colour. In this scenario, contact us immediately for an emergency dentist appointment.