Let’s start with the basic, teeth, in humans, have an external and internal structure:
External Structures
• Crown: The part of the tooth that is above the gums.
• Root: The part that’s hidden below the gums.
Internal Structures
• Pulp: The innermost part of the tooth, which contains blood vessels and nerves. • Dentin: The layer that surrounds the pulp. • Enamel: A hard, protective outer layer that covers the crown. • Cementum: The hard layer that covers the dentin of the root.