Mouthwash cleans and disinfects teeth and gums and helps reduce plaque and gingivitis. Most have the approval of The American Dental Association, though some do not. There is a large variety of mouthwash options, as there are many different flavors and levels of alcohol in different mouthwash brands. Help others learn about which are the best brands by rating the mouthwashes listed below. If there is another mouthwash that you would like to add to the list, be sure to click on the feedback tab at the bottom of the page.