With the curved tip of the brush head, you can easily clean the back teeth. Thanks to the dense bristles of the ProtectiveClean electric toothbrush and the Sonicare technology, this electric toothbrush removes plaque very effectively. You can safely use Sonicare electric toothbrushes on braces, root canals and dental crowns. Regular tooth brushing prevents cavities and improves oral health. Philips has been researching and developing oral care products for over 20 years and Sonicare electric toothbrushes have 25 million satisfied users around the world. With the help of Sonicare technology, you will be surprised uniquely between the teeth and under the gums, as the powerful brush movements push water and toothpaste between the teeth. Sonicare technology uniquely reaches between your teeth and under your gums, as the powerful brush movements push water and toothpaste between the teeth.