Human teeth are made up of four different types of tissue: pulp, dentin, enamel, and cementum. The pulp is the innermost portion of the tooth and consists of connective tissue , nerves, and blood vessels, which nourish the tooth.

How do teeth start to grow?

After a baby’s birth, teeth slowly begin to start protruding through the gumline. Although every child is different, a baby’s teeth usually start to come in around 6 months. The first tooth to grow through gums is typically a lower, middle front tooth.

What are teeth mainly formed from?

Your teeth are composed of four dental tissues. Three of them—enamel, dentin and cementum—are hard tissues. The fourth tissue—pulp, or the center of the tooth that contains nerves, blood vessels and connective tissue—is a soft, or non-calcified, tissue.