- Organ Name: Teeth
- Organ Location: Mouth (Upper and lower jaw)
- Organ System: Digestive System
- Organ Purpose: Break apart food for digestion
- Organ Weight: Between 0.51 and 2.28 grams
- Organ Count: 32 (adult) and 20 (child)
20 Teeth Facts for Kids
- Human teeth are used to break down food before its swallowed and enters the digestive system.
- Humans will have two sets of teeth throughout their entire lifetime, their baby teeth and permanent teeth.
- As a young child grows up, their baby teeth fallout and are replaced by their permanent teeth.
- A young child will have a total of 20 teeth, 10 in the upper jaw and 10 in the lower jaw.
- An adult human will have a total of 32 teeth, 16 in the upper jaw and 16 in the lower jaw.
- There are four types of human teeth, and they are canines, incisors, molars and premolars.
- The incisor teeth are used to cut up the food.
- The canine teeth are used to tear up the food.
- The molars and premolars are used to crush the food.
- A human tooth has three main sections and they are the crown, neck and root.
- The crown is the visible part of your tooth you can see in your mouth.
- The neck is the part of the tooth that connects the root and crown together.
- The root is the part of the tooth that is attached to your gums.
- There are four main components of a human tooth and they are the enamel, dentin, cementum and dental pulp.
- Enamel is the hard mineralized substance that surrounds the outer surface of the human tooth.
- Dentin is calcified tissue underneath the enamel surface.
- Cementum surrounds the root of a tooth and helps the tooth attach to tissue in the jaw and keep it stable.
- Dental pulp is tissue, blood vessels and nerves that are surrounded by the dentin and helps provide nutrients, detect pain, defend against infections and produce more dentin.
- Oral hygiene, such as brushing your teeth and flossing, will prevent tooth decay, dental and gum diseases.
- An example of tooth and gum disease is cavities, periodontal disease and gingivitis.
Pictures of Teeth
A diagram of the four different types of human teeth.
Credit: Cirocco Dental Center
A close-up picture of the front teeth of a human.
A diagram showing the anatomy of a human tooth.
Additional Resources on Human Teeth
- Tooth Anatomy – Learn about teeth anatomy and the different parts of the tooth on the Colgate website.
- Dental Anatomy of Humans – A simple overview of the human dental anatomy on the Colorado State website.
- Tooth Diseases and Disorders – Discover the different diseases and disorders that can affect human teeth on the MedlinePlus website.
- Human Tooth – Wikipedia – Find more fun teeth facts and information on the Wikipedia website.