The Basic Anatomy of a Tooth By Dr. Degel on January 24, 2017

Anatomy of a ToothOur teeth are complex structures that consist of hard and soft tissues, nerves, and blood vessels. You can better understand the importance of caring for your teeth when you understand the basic anatomy of a tooth. It can also help you understand the reason behind dental treatments at our Queens, NY office. Our dentists provide restorative and general dentistry services to help you maintain a healthy and beautiful smile above and below the surface.


The crown is the portion of the tooth that extends above the gum line. The crowns are composed of different shapes to meet our varying needs when biting into and chewing certain types of foods.


The root of the tooth actually makes up more than half of the tooth. Tooth roots extend below the gum line and are embedded into the jawbone. Conditions such as gum disease can lead to exposed portions of the tooth root, which can cause severe pain and sensitivity.

Aveolar Process

Our teeth are not directly embedded in the jawbone. Instead, they sit in sockets that are held in place by the aveolar process. This contains bone tissue within the jawbone, including blood vessels, nerves, and more.


This is the outermost layer of tissue on the tooth. It is actually one of the hardest tissues in the entire body and encompasses the entire crown. It protects the vulnerable underlying tissues of the tooth from decay.


Although still considered a hard tissue, dentin is softer and more porous than enamel. It is the layer that exists just beneath the enamel. This tissue contains tubules that connect with the tooth’s nerves, which can lead to sensitivity if exposed.


The pulp chamber sits within the center of the tooth and houses the pulp. These soft tissues contain blood vessels and nerves. The pulp is responsible for supplying the tooth with necessary nutrients to survive.


This hard tissue covers and protects the tooth root. Cementum helps keep the tooth roots connected to the jawbone. If this tissue is damaged or weakened by periodontal disease, it can lead to tooth loss.

Periodontal Ligament

The periodontal ligament holds each tooth in place, along with the cementum. It also allows for a mild flexion of the teeth as we chew.

Root Canal

The root canal is a common misnomer for root canal therapy, which eradicates an infection from the root canal. The root canal itself is actually the openings that connect from the root to the pulp chamber. The blood vessels and nerves travel through these canals and connect with the rest of the mouth.

Schedule an Appointment

Now that you know the different parts of the tooth and their functions, you may have a better understanding of the importance of oral hygiene and regular dental cleanings and exams. You may even be able to better pinpoint what is wrong the next time you are in pain. Contact our office today to schedule an appointment so we can help you maintain all the parts of your smile.

Related to This

Doctors Carmen Every-Degel and Clifford Degel

Astoria Dental Group

Our doctors are widely recognized for their contributions to the field of dentistry. They are members of various prestigious organizations, including: 

  • Academy of General Dentistry 
  • American Academy of Implant Dentistry 
  • International Congress of Oral Implantologists 
  • American Dental Association

If you are ready to transform your smile with Astoria Dental Group, request a consultation online or call us in Queens at (718) 278-1123.

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