Paid PostPosted on May 31, 2018This Quiz Will Reveal How Gross Your Mouth Actually IsSomewhere between okay and naaaaaaasty. And if you wanna un-gross that mouth, LISTERINE® kills the germs brushing leaves behind.by LISTERINE®Brand PublisherLinkFacebookPinterestTwitterMail Images from Getty Images Worried about that mouth? Brushing only reaches 25% of your mouth. LISTERINE® cleans nearly 100%! Take this survey. It's almost like taking a quiz!