Oral B Vitality Precision Clean for a healthy mouth that shows in your smile. The Precision Clean offers a deeper, more thorough clean than a manual toothbrush since it gets hard to reach areas. Helps prevent gum disease, the leading cause of tooth loss and keeps teeth naturally white. The Oral B FlexiSoft Brush head is a compact round brush head that surrounds each tooth while interdental tips reach deep into hard to reach areas. The high speed oscillating - rotating motion sweeps plaque away. Replace brush heads every 3 months, when bristles are worn or when color on Indictor bristles has faded half way down the bristles. Oral B, the brand more dentists use themselves worldwide.