team img

Tooth Anatomy

Tooth Anatomy

  • The teeth are the hardest substances in the human body. Besides being essential for chewing, the teeth play an important role in speech. Parts of the teeth include:

  • Enamel: The hardest, white outer part of the tooth. Enamel is mostly made of calcium phosphate, a rock-hard mineral.

  • Dentin: A layer underlying the enamel. Dentin is made of living cells, which secrete a hard mineral substance.
  • Pulp: The softer, living inner structure of teeth. Blood vessels and nerves run through the pulp of the teeth.
  • Cementum: A layer of connective tissue that binds the roots of the teeth firmly to the gums and jawbone.
  • Periodontal ligament: Tissue that helps hold the teeth tightly against the jaw.
  • Roots:Much as a tree's roots help anchor it in the ground, a tooth's roots anchor it in the jawbone. This allows teeth to withstand the force of biting and chewing food on a daily basis.