The techniques used to perform root canal treatment have advanced considerably, making this routine procedure no more uncomfortable or inconvenient than a filling.
Many people who need root canal therapy are currently in pain, and a root canal will help to relieve your pain and save your tooth. Sometimes if your tooth is acutely painful then extra consideration will be taken in anaethetising the area (extra anaesthetic/different techniques) to ensure your comfort. After your procedure, you may experience some discomfort, however this should be only for a few days as the tooth settles and should be easily controlled with over the counter analgesics.