3D Action for Tooth-by-Tooth Cleaning. The Sensitive toothbrush head features gentle bristles, ideal for cleaning around sensitive and inflamed areas. It provides a superior clean than a regular manual toothbrush and is designed for those seeking a gentle, yet effective, brushing experience. The Sensitive head works with unique Oral-B technology that oscillates, rotates and pulsates, allowing the bristles to surround each tooth for an amazing, tooth-by-tooth clean.