Improved dental flosses include two or more components selected to provide desired properties to the floss. The improved flosses may comprise one or a plurality of multicomponent filaments, each filament including an inner core selected to provide strength to the floss, and an outer layer selected to...http://www.google.fr/patents/US5875797?utm_source=gb-gplus-shareBrevet US5875797 - Dental floss
