Listerine is the final step to ensuring a noticeably healthier mouth. Focusing on good oral care habits, and sticking to them, includes regular visits to your dentist, and a daily regimen of brushing, flossing, and rinsing with Listerine. The truth is that brushing reaches 25% of your mouth. Listerine? cleans 99.9% of germs that cause bad breath and plaque.