Curaprox CPS 06 REFILL Description CPS Prime interdental brushes clean the narrowest interdental spaces, preventing gum inflammation and bad breath. They have ultra-thin bristles with an umbrella effect, patented surgical thread for the smallest interdental spaces, long life, click system for all handles. How to use: Tilt it at an angle: place CPS Prime in the space between the teeth with the tip inclined with respect to the axis of the tooth and insert it gently until it approx