what is the strongest substance in your body
Tooth enamel is the thin outer covering of the tooth and the strongest substance in the body. It's what makes your teeth white and it exists to protect the crowns of healthy teeth. Tooth decay is the destruction of tooth enamel.
Enamel: Is the hardest substance in the human body. Tooth decay: Bacteria in your mouth produce acid which rots your teeth. Teeth break down food. Your teeth prepare food for digestion by breaking it down and chewing it up.