What is the hardest tissue of the human body?

Bone is the hardest, rated up to 5 on the Mohs scale. Dentin is second, rated 3. Enamel is not a tissue, but a hard secretion produced by cells called ameloblasts before the tooth erupts from the gum. read more

Even though the Enamel is considered the hardest tissue in the human body, it is not a living tissue. Therefore, the second hardest tissue in the body which is also living, is the Dentin. Dentin is a calcified tissue of the body and, along with enamel, cementum, and pulp, is one of the four major components of teeth. read more

Enamel is the hardest tissue of the human body. It contains only a slight amount of organic substance. read more