Question

If Enamel is the hardest part of our body then how it undergo damage...??

Answer 1

Everything has peaks and valleys in it when viewed with the help of microscope. Our tooth enamel also has. The particles of food stick in the valleys. Some bacteria attack that part and start eating the sugar particle but with it they also eat the enamel.

Answer 2

Explanation:

Enamel

Enamel, in anatomy, the hardest tissue of the body, covering part or all of the crown of the tooth in mammals. Enamel, when mature, consists predominantly of apatite crystals containing calcium and phosphate. Enamel is not living and contains no nerves.