Sonicare is based on innovative-patented sonic technology. Sonicare achieves its bristle velocity through a combination of high frequency and high amplitude bristle motion. Dynamic cleaning action has been demonstrated in vitro to be gentler on dentin than a manual or an oscillating toothbrush. The power of dynamic cleaning action, coupled with the specially designed bristle orientation, results in deep penetration of interproximal spaces. It generates high amplitude and high frequency bristle motion, creating dynamic cleaning action that drives fluid forces deep into interproximal spaces and along the gum line. The result is a superior clean that you can see and feel. You understand that your oral care is as important as all your other health regimens. And the Essence 5300 only proves the point. It has everything you need to familiarize yourself with the impressive results of Sonicare - the same bristle and brush Head design as Elite, as well as Easy-start and Smartimer. The patented sonic technology will show you why Sonicare is the leading recommended brand by U.S. dental professionals. The only angled sonic brush that gives you better reach for a better clean. Sonicare's unique dynamic cleaning action reaches deep between teeth and into hard-to-reach areas, while massaging gums for a brushing experience unlike any other.