Braun Oral-B Rechargeable Toothbrush Replacement Head, 5x The Oral-B TriZone brush head features innovative triple action deep cleaning bristles for superior plaque removal vs a regular manual brush. Makes it easy Oral-B TriZone guarantees a long-lasting clean, fresh feeling with no change in brushing technique vs. a regular manual brush Outstanding effects The sweeping bristles of the TriZone toothbrush head reach deep between teeth and provide superior plaque removal. Multi-dimensional cleaning technology Oral-B TriZone power toothbrushes have triple action cleaning for cleaner teeth and healthier gums. (vs. a regular manual toothbrush)