Paid PostPosted on May 17, 2018Is Your Mouth Grosser Than The Average Person's?Talking of gross, did you know brushing only reaches 25% of your mouth? Use LISTERINE® to clean nearly 100%!by LISTERINE®Brand PublisherFacebookPinterestTwitterMailLink Additional images provided by Getty Images Feeling gross? Well, that's probably because brushing only reaches 25% of your mouth. LISTERINE® kills the germs brushing leaves behind, cleaning virtually 100%! Take this survey. It's almost like taking a quiz!