Mouthwash or mouth rinse is a product used to enhance oral hygiene. Some manufacturers of mouthwash claim that antiseptic and anti-plaque mouth rinse kill the bacterial plaque causing caries, gingivitis, and bad breath. Plaque build-up can lead to inflamed gums. A mouth rinse can help by removing the plaque and reducing the inflammation. Anti-cavity mouth rinse uses fluoride to protect against tooth decay. Mouthwash does not eliminate the need for both brushing and flossing.