The Oral-B iO Series 3 electric toothbrush combines oscillation-rotation movements and powerful but gentle micro-vibrations with Oral-B’s dentist-inspired round brush head to deliver 100% cleaner teeth and healthier gums in just 1 week versus a regular manual toothbrush. The Oral-B iO Series 3 electric toothbrush is so advanced, you’ll feel like you just left the dentist.