Looking for complete oral care toothbrush? GIO-INTERDENTAL is the answer. With CLIO's PATENT T&R bristle Technology (PCT-KR2009-004758, 10-1046466), you'll get the benefits of both tapered bristles and traditional rounded bristles. Ultra soft TAPERED Bristles (diameter less than 0.01mm) remove plaque and debris by reaching further between teeth and periodontal pockets between teeth and gum where common gum disease occurs. Firmer ROUNDED bristles remove stubborn plaque from the surface of the teeth with ease when ultra soft bristle alone can leave behind without damaging enamels of the teeth. GIO-INTERDENTAL's ideally angled CRISS-CROSS T&R bristle remove more plaque and reach deeper between teeth and gum lines to clean more effectively than normally angled toothbrush. GIO's Bristles are treated with Tynex® StaCleanTM by DuPontTM to limit cultivation of Bacteria on the surface of the bristle to keep toothbrush hygienic between daily brushing so you know your toothbrush is clean.