What Are Root Canals and How Do They Work?

Tooth decay begins as a pre-cavity spot that can usually be reversed with improved oral hygiene. Once a cavity forms, however, the infection will only advance deeper into the tooth unless it is addressed by a qualified dentist. While many cavities can be addressed with fillings, root canals may be necessary for infections that have reached the pulp at the center of the tooth. Here’s a quick look at what root canals are, how they work, and why they are nothing to be afraid of.