The CS
  5460 Ultra Soft Toothbrush gently fights plaque and stains with the power of
  CUREN filaments. Densely packed and incredibly gentle, the CS 5460 provides
  an efficient and comfortable cleaning experience. Many dental products rely
  on nylon bristles for an efficient cleaning, but don't see the same results.
  CUREN filaments are stiffer than nylon and remain just as stable in the mouth
  as when they are dry. These properties make it possible to produce a
  toothbrush with thousands of ultrafine bristles.
    
    A regular toothbrush has 500 thick bristles, over 10 times fewer bristles
  compared to the CS 5460. Each CUREN filament in the CS 5460 is 0.01 cm thin
  and rounded at the tops; a unique design constructed with your care and
  comfort in mind.
    
    More than teeth whitening and fresh breath, we care about your oral health.
  The CS 5460 is designed to give you an effective cleaning, but also tend to
  your gum line. The gum line must be kept clean, as bacteria can easily
  materialize and cause many oral health issues. The fine filaments of the CS
  5460 gently and effectively clean the gum line, without injury or
  discomfort.
    
    The octagonal handle of the CS 5460 provides you with a precise
  manipulation to brush at every angle. Equally important, the compact brush
  head removes stubborn plaque and stains in hard-to-reach places. Tough on
  plaque, delicate on gums, the CS 5460 has been constructed to bring you an
  unparalleled gentle-cleaning experience.