Teeth

To understand the functions of the different types of teeth.

What is the digestive system?

Recap what you can remember about the digestive system, create a small mind map.

e.g.

Digestive system

What is the importance of teeth?

How many teeth does a human have? Children- 20 milk teeth Adults- 32 teeth

What is the importance of teeth?- Speaking - Eating

How are teeth important to the digestive system?

Teeth are used to cut, tear and grind food in the mouth. This makes it more manage

for food to travel through the oesophagus.

Types of teeth

Canine

Molar

Incisor

Premolar

We have four canines –they are sharp and pointy and sit next to the incisors.

Their function is to tear food.

We have eight incisors –they are the middle four teeth on the upper and lower jaws.

Their function is to bite off or slice food.

Humans have eight molars (the large, flat teeth at the back of the jaw).

Molars grind down food before it is swallowed.

Humans have premolars (the teeth between the canines and molars).

The function of premolars is to crush and tear food.

Teeth and digestion

• Teeth help with the first stage of digestion.• Food is chewed and broken down by teeth.• The tongue and the molars work together to roll the food into a ball so that it can be swallowed.

• Saliva is produced to soften the food and to make swallowing easier.

Task

Create a poster on teeth.

Please include: -The different types of the teeth and their uses. - An image/ diagram of the four types of teeth- The importance of teeth in the digestive system.

Challenge: Research more facts on the types of teeth to add to your poster.