Innovative blue bristles on the Oral-B Indicator toothbrush inform patients when their brush has lost its optimum effectiveness, reminding them it’s time to change their toothbrush. Studies show a new toothbrush can remove 30% more plaque vs a 3-month-old toothbrush.*1 Polished, end-rounded bristles effectively clean along the gumline. Oval brush head enables access to posterior teeth.