You may need a root canal if you are experiencing severe tooth pain or tooth pain that has come on suddenly. Tooth pain may also take the form of tooth sensitivity to hot or cold temperatures, as well as foods or beverages containing sugar. The affected tooth may also appear darker in color and the gums around it may be swollen or produce a discharge. If you are experiencing any of these symptoms, you will want to schedule an appointment with your Kamloops dentist to determine if a root canal or other treatment is needed.