This Philips Sonicare C2 Optimal Plaque Defence toothbrush head is perfect for those who want to maintain optimal plaque removal as part of their everyday oral healthcare routine. Densely-packed, high-quality bristles remove up to 7x more plaque than a manual toothbrush. And the specially curved power tip makes reaching the teeth at the back of your mouth a breeze. You'll always get the best possible clean with Philips BrushSync mode-pairing feature. The Philips Sonicare C2 Optimal Plaque Defence brush head syncs with your BrushSync enabled Philips Sonicare toothbrush handle, selecting the optimal brushing mode and intensity level for exceptional cleaning. All you need to do is start brushing. Brush heads become less effective after 3 months use, but with BrushSync you'll be reminded before this happens. Your smart toothbrush will track how often and how hard you brush and will notify you when it's time for a replacement. Don't have a smart Philips Sonicare toothbrush? Just monitor your blue replacement bristles — when they turn white you'll know it's time for a fresh brush head. Your Optimal Plaque Defence brush head fits perfectly with any Philips Sonicare toothbrush handle, except PowerUp Battery and Essence. Simply click on and off for easy replacement and cleaning. Your Sonicare brush head and handle are the ultimate team. Enhancing Philips sonic technology, they give you unrivalled cleaning. High-speed vibrations in your toothbrush handle power up to 62,000 brush movements per minute that whip up your toothpaste into gentle cleaning bubbles, driving them deep between your teeth and along the gum line for exceptional cleaning. All Philips Sonicare brush heads are safe and gentle on teeth and gums. During tests, each brush head is put through its paces to ensure durability and an exceptional performance every time you brush.