Our State of the art sonic technology was inspired by the technology used in dental offices and delivers a total of 31,000 brush strokes per minute, providing 7x better plaque removal and a deeper clean between teeth and long the gum line than a manual toothbrush. It also removes up to 33% of surface stains and reduces gingivitis and bleeding in just 2 weeks. The DiamondClean toothbrush has pressure sensors that gently vibrate the handle when brushing is too hard.