See Fifteen{15} Surprising Truth About Human Teeth.

      The teeth are a group of hard organs found in the oral cavity. We use teeth to masticate or chew food into tiny pieces. The teeth are the hardest substances in the human body
         

      Now, here you are, carefully read through the following:

1.     The hardest part of your body? Your tooth enamel.
2.     Teeth provide shape to the mouth.
3.     Brushing daily can reduce your...