What are our teeth for? What are they made of?
by: Dental Assistant Team
What are our teeth for? It may sounds like a silly question but here are a few facts you might not know about your teeth...
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.
A normal adult mouth has 32 teeth, which (except for wisdom teeth) have erupted by about age 13:
The different types of teeth are:
- Incisors (8 total): The middlemost four teeth on the upper and lower jaws
- Canines (4 total): The pointed teeth just outside the incisors.
- Premolars (8 total): Teeth between the canines and molars.
- Molars (8 total): Flat teeth in the rear of the mouth, best at grinding food
- Wisdom teeth or third molars (4 total): These teeth erupt at around age 18, but are often surgically removed to prevent displacement of other teeth.
If you have any questions regarding this post, contact us at: 561-265-1998 , one of our representatives will be happy to assist you.
Article date: Jun. 21 2013
Type: Dental Office
Location: Boca Raton - Palm Beach County