Aside from being painful, an infection in the root of your tooth can lead to swelling and even bad breath. Left unchecked, that infection may also spread beyond your smile to other parts of your body, and you could find yourself visiting our dentist for an extraction. If you have developed a painful or sensitive tooth, call Richard S. Durando, DDS at 650-323-8328. Dr. Richard Durando can see you for root canal therapy in Menlo Park, California, to preserve your tooth and your smile.