Dental Anatomy and Types of Teeth

Teeth are present in the upper and lower jaws of the mouth.
They help us to:
- Smile.
- Bite and chew food.
- Speak clearly.
- Give proper shape to the face.
Properly chewed food is fine and gets digested properly.
It is vital to take care of teeth.

Babies are born without teeth.
Teeth start appearing around six months old.
A three-year-old child has twenty teeth.
This first set of teeth is called milk teeth or temporary teeth.
As a child grows, milk teeth start falling down, and new teeth start appearing.
By the age of twenty, a new set of teeth is developed, called permanent teeth.
Most adults have a full set of permanent teeth containing 32 teeth, 16 in each jaw.

There are four types of teeth: incisors, canines, premolars, and molars.
- Incisors: Help us to cut and bite food. There are four incisors in each jaw.
- Canines: Sharp, pointed teeth used for tearing food.
- Premolars: Broad teeth used for crushing food.
- Molars: Used for grinding food.
Tooth distribution:
- Upper jaw:
  - Central incisor
  - Lateral incisor
  - Canine
  - First premolar
  - Second premolar
  - First molar
  - Second molar
  - Third molar
- Lower jaw:
  - Central incisor
  - Lateral incisor
  - Canine
  - First premolar
  - Second premolar
  - First molar
  - Second molar
  - Third molar

A tooth is made of two parts: hard and soft.
- The crown is the visible white part of the tooth.
- The part of the tooth inside the gums is called the root- Not specified in transcript
- Enamel is the hardest substance in our body. It protects the tooth. Below the enamel is dentin, which is also very hard.