Question

Q.8. How many teeth do we have in our mouth? Classify
them into various types. What kind of function do they
perform?​

Answer 1

Answer:

We have 32 teeth in total.

1. Incisors = 4 teeth in each jaw. Function is cutting and biting
2. Canines = 2 teeth in each jaw. Function is piercing and tearing
3. Premolar = 4 teeth in each jaw. Function is chewing and grinding
4. Molar = 6 teeth in each jaw. Function is chewing and grinding

Answer 2

Q. How many teeth do we have in our mouth?

There are 2 sets of teeth during our life.

A child has 20 initial teeth which come after birth and fall out while an adult has 32 teeth. The former are temporary teeth which are replaced by permanent teeth.

Q. Classify them into various types.

There are 4 different types of teeth:-

• Incisors
• Canine
• Premolars
• Molars

Q. What kind of function do they perform?

1. Incisors:

These are the front teeth. These teeth appear first in a child. An adult has 8 incisors. The main function of these teeth is cutting of food.

2. Canine

They are pointed and sharp teeth. There are 4 canines in both, a child and an adult. They are longest of all teeth. The main function of these teeth is tearing of food.

3. Premolars

There are total 8 premolars in the mouth (2 per quadrant). They are present next to canine. The main function of this set of teeth is crushing of food.

4. Molars

There are total 12 molars (3 per quadrant). They are flat teeth at the rear side of the mouth. The main function of this set of teeth is grinding of food.