Human Tooth
Human Tooth

Human Tooth: 6 Anatomy, Types and Fuctions

Did you know, the outermost layer of human tooth called enamel is the hardest body tissue? That’s why, when there are fire victims, identification will be done by looking at dental records. Enamel is one of the many anatomical arrangements of teeth that are not yet known.

So many of the overall functions of the teeth and oral cavity of the body. As a food entrance, tooth decay can affect your body’s nutritional intake. 

The anatomy of human tooth

At first glance, our teeth are only visible as white grains embedded in the gums and jawbones. But behind that, the teeth are actually composed of layers with their own functions. Both milk teeth and permanent teeth, here are the layers that make up the anatomy of the teeth.


Enamel is the outermost layer of the teeth that gives color to the teeth. As the harshest tissue in the body, enamel serves to protect the layers of the teeth underneath.

Enamel contains very high calcium phosphorus. This layer can be damaged due to bacterial infections and very hard impacts. Once the enamel is damaged, it cannot recover on its own, and must undergo a patching process to restore its aesthetic function or appearance.

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Dentin is a layer that is under the enamel. Dentin’s consistency is softer than enamel and it is highly sensitive to pain stimuli, such as cold food and drink and wind. Dentin has very small holes containing tubules connected to the nerves of the teeth.

Therefore, the tooth hole that has reached the dentin layer, will give rise to pain. If the hole occurs, only reaching the enamel layer, the pain generally has not appeared.


Pulp is the nerves of teeth. On the crown of the tooth, the pulp is located in a layer called the pulp room. This nerve extends to the root, and dwells in the root canal of the tooth.

Tooth decay that has reached the root is one of the worst conditions that does not often lead to tooth extraction. However, if the nerve is damaged, but the crown and the root of the tooth are still good enough to be repaired, then root canal treatment can be an option.

In addition to its layers, the anatomy of the tooth can also be divided by its parts. With the naked eye, the teeth can be divided into crowns, neck teeth, and root teeth.


Human Tooth Anatomy
Human Tooth: 6 Anatomy, Types And Fuctions 2

The crown of the tooth is part of the anatomy of the tooth that has been clearly visible in the oral cavity. The crown is the place of the enamel and part of the dentin layer. Tooth crown damage, which has long been referred to as a cavity, is the most common type of dental disease.

Teeth neck

The neck of the tooth is the part that sits between the crown of the tooth and the root of the tooth. When viewed inside the oral cavity, the neck of the tooth is an area that is on the edge of the gums. The neck of the tooth is also called the cervical tooth.

Root teeth

The root of the tooth is the part of the tooth embedded in the gums and jawbone. The root canal of the tooth is where the blood vessels and nerves of the tooth dwell. Thus, the damage that has reached the root of the tooth is usually severe damage.

Types of Human Tooth and Their Functions

Teeth have different shapes and have their own functions. Here are the types and functions of teeth:

  • Incisors, numbering eight are located in front of the mouth and serve to bite food. Four over and four under.
  • Canines, numbering four and become the sharpest teeth to tear food. Located two on top and two below.
  • Molars, numbering eight and serve to chew and grind food. In addition to molars there are also premolar teeth that have the same number and function as molar teeth.
  • Wisdom teeth, appearing most recently at the age of 18-20. Wisdom teeth will usually be removed because they cause pain when growing and pushes other teeth.

Thank you very much for reading Human Tooth: Anatomy, Types and Fuctions, hopefully useful.

Last Updated on October 25, 2020 Reviewed by Market Health Beauty Team