The Gum Expanding Floss 2030 expands forming a chain with a larger diameter that contacts a larger surface area around the openings. Large spaces often occur due to gum recession and loss of papilla, both consequences of periodontitis. It is lightly waxed for easy handling and insertion between teeth. The floss has a textured nylon construction that is gentler on the gums, due to its larger diameter than regular thin floss. Helps to clean between teeth more easily and effectively, for people with irregular gaps or large spaces between teeth.