Inspired by professional dental tools, the 3DWhite toothbrush head is designed to clean tooth-by-tooth. It has a designed polishing cup to help remove surface stains while bristles clean away plaque and is suitable for cleaning and whitening. It even has the power to whiten teeth in 2 weeks by removing surface stains. The 3DWhite replacement toothbrush head is designed for enhanced cleaning to help you achieve a whiter smile. It features a special polishing cup that gently removes surface stains for whitening results. In fact, 3DWhite has the power to whiten teeth in 2 weeks by removing surface stains. Dentists recommend replacing your toothbrush every 3-4 months. Oral-B replacement toothbrush heads feature Indicator bristles that fade halfway to help remind you when to replace your toothbrush head so you maintain an enhanced clean vs. a regular manual toothbrush.