Oral-B Essential Floss (Waxed) 50m Dental Floss Oral B Essential Floss cleans where your brush can't reach. . Oral B Essential Floss combines specially designed filament with a polymer coating that makes plaque removal simple. It's easy to insert, and is shred-resistant, so it won't fray as it slides between your teeth. Benefits of Oral B Essential Floss Is easy for you to insert. Gives you convenience, comfort and safety with shred- and fray-resistant qualities. Slides easily between your teeth.