Mouthwash can do more than just stop bad breath. It can deliver an extra dose of fluoride, whiten teeth and kill bacteria in the mouth. Some products promise to help prevent plaque and gum disease.

When it comes to mouthwash, it's easy to go down the wrong path. "There (are) so many different types of mouthwashes on the market today, which makes it very difficult to choose which one is right for ...