As one of Oral-B's premium replacement toothbrush heads, the Cross Action features precise angles that target plaque to remove up to 100 per cent more plaque vs. a regular manual toothbrush. The shape of Oral-B Cross Action toothbrush head features specifically engineered bristles that are designed for complete tooth coverage. The bristles reach deep between teeth to remove plaque and leave your whole mouth cleaner than a regular manual toothbrush.