I recently saw a TV commercial that says that brushing only reaches 25% of the surface of your teeth.
That’s OK, because hopefully you are first flossing your teeth, pre-rinsing your mouth with either water or Plax, then brushing. And after you spit out your toothpaste, don’t eat or drink for the next 30 minutes. An optional step is swishing mouthwash around after you floss and brush, which will further bathe your teeth with fluoride goodness!
The head displayed on top is shinier due to the fact that it is brand new. If you look closely, you will always notice the blue bristles near the top of the head that extend all the way to the brushing surface. This head also has fresh bristles intact in a tight bunch.
The head on the bottom has lost its shine due to deposits accumulated from heavy use over time. The head as a whole has a yellow appearance. This head’s blue bristles have also lost their color, which have faded and is also a key indicator that this head requires replacement.