The bacteria that causes and feeds on cavities can cause bad breath too. As bacteria feed, they release sulfur gas in your mouth, which is bad breath. Bad breath is sulfur gas. If you know or suspect you have a cavity, see your dentist as soon as possible. It’s easier to treat cavities when you discover them early. If you wait too long, decay may destroy a large portion of the tooth, necessitating a crown or root canal instead of a small filling. If you take care of cavities as soon as you notice them, you’ll also reduce your chances of having bad breath.

