With Power Tip bristles designed to reach deep and help clean hard-to-reach places, the Oral-B Complete Deep Clean toothbrush removes significantly more plaque than a regular manual brush. It also features longer gum-massaging bristles that gently clean and stimulates the gum line. The Blue Indicator bristles fade halfway so you know when to replace your brush. More is Better: Power Tip Bristles. Gum Massaging Bristles. Indicator Bristles. Deeper clean vs. regular manual brush.