The Oral-B Smart Series 4000 sensi-clean electric toothbrush combines cleaning technology with Bluetooth connectivity to the Oral-B smartphone app to give you real-time feedback on your brushing habits that can be adjusted by your dental professional. The dentist-inspired round head oscillates, rotates and pulsates to break up and remove up to 100 per cent more plaque than a regular manual toothbrush while the extra gentle bristles provides a superior and gentle clean. The pressure sensor lights up if you brush too hard to prevent harmful over-brushing and there are three modes: Daily clean, gum care and sensitive plus a timer to help you brush for a dentist-recommended 2 minutes.