If your dentist tells you that you need root canal therapy even though your tooth doesn’t hurt, you might be confused at first. Isn’t the whole point of a root canal to put a stop to an infection that’s causing you pain? In many cases, the answer is yes – but pain is just one possible sign that root canal therapy might be necessary. The following post goes into more details about why root canal therapy is performed and what symptoms can tell a dentist that the treatment is necessary.