https://youtu.be/RoKeARkEwvA
VIDEO. Time-lapse: Re-enact the 1980’s “Pepsi Challenge” with a twist. Take two human molars and put each in a glass. Pour Pepsi into one glass and coke into the other and allow them to sit for 72 hours. Remove. Which is better for discoloring/dissolving teeth? Coke or Pepsi?