Cosmetic mouthwashes- Most over-the-counter commercial mouthwashes fall into this category. In most cases, they are designed to mask bad breath (halitosis), rinse debris from the teeth and gums and temporarily reduce the amount of bacteria in the mouth.
Therapeutic mouthwashes-These offer the same benefits as cosmetic rinses, but also help prevent or treat certain oral health conditions, such as the build-up of dental plaque. This includes prescription antiplaque and antigingivitis rinses, as well as rinses that contain fluoride (which strengthens the teeth and protects them from decay). Some may also provide relief from oral pain.