Gums love this toothbrush: thanks to its 5,460 CUREN filaments. A CS 5460 ultra soft toothbrush offers unparalleled gentleness and efficiency – and is popular all over the world. 5,460 CUREN filaments, 0.1 mm in diameter.Plaque's toughest enemy is the gentleness of CUREN -bristles: CS toothbrushes really are incredibly gentle. The 5460 CUREN -filaments of the CS 5460 ultra soft form an uncommonly dense and effcient cleaning surface. While they are gentle on gums and teeth, CUREN -filaments are extremly hard on plaque. Anyone who tries a CS toothbrush will never want to do without this brushing experience again.CURAPROX toothbrushes not only prevent brushing damages, but also break up and remove plaque perfectly. CUREN -filaments are stiffer than nylon and remain just as stable in the mouth as when they are dry. These properties make it possible to produce toothbrushes with a large number of ultrafine bristles.