Lion EX onetuft systema 12-piece set This is a toothbrush exclusively sold by Lion for dental professionals. I bought too many when I had braces and am now selling the extras. [systema: Periodontal pockets, furcation areas, and around orthodontic appliances] The use of super-tapered bristles with excellent reach makes it suitable for cleaning periodontal pockets, furcation areas, and around orthodontic appliances.