Threader floss is specialized floss with multiple thicknesses and textures. An area of un-waxed floss can get in between teeth. An area of thicker nylon meshwork is to clean larger surfaces and a stiff end to allow for threading under bridges, beneath tight contact areas, through exposed furcation’s, around orthodontic braces.
It is important to clean all aspects that the floss can reach by gliding it gently to contact all surfaces.