Colors Shipped Will Vary At Oral-B we care for your oral health by developing innovative products that are trusted by dental professionals worldwide. Gum Massaging Bristles: Outer angled bristles gently massage and stimulate your gums and help clean along the gum line. Indicator® Bristles: Blue Indicator bristles fade halfway so you know when to replace your brush. Clinical research proves that a new toothbrush can remove 30% more plaque than one 3 months old.* *Data on File ;