Summary: This resource from the American Dental Association describes two main types of mouthrinse: cosmetic and therapeutic.
Background: While not a replacement for daily brushing and flossing, use of mouthrinse (also called mouthwash) may be a helpful addition to the daily oral-hygiene routine for some people. Like interdental cleaners, mouthrinse offers the benefit of reaching areas not easily accessed by a toothbrush.
Some of the relevant topics covered include the following:
For more information
https://www.ada.org/resources/research/science-and-research-institute/oral-health-topics/mouthrinse-mouthwash