For the Kate Nash song see "Mouthwash "For the ska-punk band, see "Mouthwash "Mouthwash or mouth rinse is a product used for oral hygiene. Antiseptic and anti-plaque mouth rinse claims to kill the bacterial plaque that causes caries, gingivitis, and bad breath. Anti-cavity mouth rinse uses fluoride to protect against tooth decay. However, it is generally agreed that the use of mouthwash does not eliminate the need for both brushing and flossingGunsolley JC. A meta-analysis of six-month studies of antiplaque and antigingivitis agents. J Am Dent Assoc. 2006 Dec;137(12):1649-57. PMID 17138709Tal H, Rosenberg M. Estimation of dental plaque levels and gingival inflammation using a simple oral rinse technique. J Periodontol. 1990 Jun;61(6):339-42. PMID 2366142. In the absence of a ready-made mouthwash, gargling with plain water is preferable, to remove food particles, sugars and other pollutants in the mouth.Mouth washes may also be used to help remove mucous and food particles deeper do