Philips Sonicare C3 Premium Plaque Defence Replacement Brush Heads, Pack of 5, White - HX9045/17: Up to 10x more plaque removal* for great results. Get a clean as unique as your smile. Our C3 Premium Plaque Defence adapts to the contours of your teeth and gums thanks to soft, flexing sides that give you 4x more surface contact than a regular brush head** for a comfortable, deep clean. Innovative technology • Philips Sonicare's advanced sonic technology • Automatically selects optimal mode for ultimate results*** Designed to optimise performance • Tested to meet your oral health needs • Always know when to replace. Always get an effective clean. • Click-on design for simple brush head placement Philips Sonicare's deep clean • Up to 4x more surface contact** for an effortless deep clean For exceptional plaque removal • Up to 10x more plaque removal* than a manual toothbrush Now more sustainable • 75% of the plastic in this product is bio-based**** Contents: C3 White Premium Plaque Control Brush Heads x 5  Substantiations: * Removes up to 7x more plaque vs. a manual toothbrush **than a DiamondClean brush head ***BrushSync™ mode-pairing is only compatible with Philips Sonicare BrushSync™ enabled toothbrush handles ****Mass balance basis