TePe Interdental Brush Original: straight brush head, short handle, nine - colour coded sizes. It is a small brush specially designed for cleaning between your teeth, where a regular toothbrush does not reach. Using an interdental brush every day, as a complement to toothbrushing, is an easy and efficient method to keep your gums and teeth fresh and healthy. Cleaning with an interdental brush prevents gum inflammation, cavities and bad breath.