Philips Sonicare ProtectiveClean 4300 Electric Toothbrush HX6809/16 features densely-packed, high-quality bristles which are extra gentle to remove plaque along the gumline, which improves gum health up to 100% more than a manual toothbrush. Philips Sonicare ProtectiveClean emits a gentle pulsing sound that alerts you when there is too much pressure applied. This toothbrush is suitable for use with braces, fillings, crowns, and veneers, and helps prevent cavities.