A persistent toothache can be stressful and make you wonder if a root canal is coming your way. Many people worry: Is a root canal painful?  Thanks to modern dentistry, root canal treatments  are far less intimidating than they used to be. This article explains the procedure, what to expect, and how pain is managed so that you can make an informed decision. Understanding Root Canal Treatment A root canal treatment is designed to save a tooth that is badly infected or damaged.