#1 String Floss brand recommended by Canadian Dental Hygienists*. GUM® PRO-Weave® removes 2x more dental plaque**. This special weave is designed to resist shredding, breaking and is gentle on gums.PRO-Weave® Dental String Floss is crafted using a uniquely woven floss design that resists shredding as it works its way into and out of the narrow spaces between teeth. Once it gets between the teeth, it works to remove food particles and dental plaque from below the gumline, where tooth decay and gum disease start. Further, using PRO-Weave® Dental Floss daily can help remove dental plaque before it hardens and causes gum irritation.