There's another important step in your daily fight against plaque: the antimicrobial rinse. After you brush and floss, a good swish of mouthwash can disinfect your mouth. Some over-the-counter mouthwashes contain plaque fighters like fluoride, chlorhexidine gluconate, zinc citrate and triclosan, but prescription products will be stronger. Be warned, though: Many mouthwashes have a high alcohol content, so if you have kids, it's best to get all-natural rinses. Look for products with peppermint oil, tea tree oil or grapefruit seed extract.