Dr Tung's Smart Floss dental floss is clinically proven to be more effective than regular floss. Smart Floss can clean around the teeth and reach deeper into the interdental spaces, leaving teeth cleaner and you smiling longer. It has been shown to remove up to 55% more plaque than some of the most popular flosses. This revolutionary floss is also great for gums. Even electric or manual flossers which claim to be 'as effective as regular floss' are no match for Smart Floss. Smart Floss is now in plastic-free, paperboard packaging.