It is difficult to maintain good cleaning habits. ExpertClean accompanies you between dental checks. With the integrated intelligent sensors, you know when to adjust the pressure and use the app's progress report to stick to your cleaning routine. Electric sonic toothbrush with App HX9601/03 With the C3 Premium Plaque Defense brush head you know you're getting the best possible cleaning. The soft, flexible bristles adapt to the shape of your teeth, providing 4 x more surface contact and up to 10 x more plaque removal in hard-to-reach areas. Focus on improving your gum health with the G3 Premium Gum Care brush head. The smaller size and the bristles that are aligned with the gumline are the best way to prevent gum disease in this area.