This dual action tongue cleaner efficiently removes plaque, food debris & dead cells from the surface of the tongue. Clinical research shows that most bacteria in the mouth lives on the surface of the tongue, one of the most common sources of bad breath This tongue cleaner features a narrow head that minimizes sensitivity & gag reflex, a long handle that provides easy access to the far-back areas of the tongue & a comfort grip handle design for firm control & precision guidance for brushing & scraping 2 rows of bristles reach into the tiny folds & crevices on the tongue surface to dislodge plaque & debris .