Teeth and digestive system

How many permanent teeth we have?

• 32

• 16

• 30

• 31

Canines are_________in number

• 3

• 4

• 2

• 1

Which kind of teeth help us to crush and grind food before we shallow it

• Molars

• premolars

• canines

• incisors

A tube through which blood flows.

• blood

• blood vessels

• enamel

• dentine

Teeth that help us to tear food into pieces___________

• Enamel

• Canines

• pulp

The innermost layer of the tooth is called the__________

• Pulp

• enamel

• Molars

The outer white layer is called the_________

• Dentine

• enamel

• pulp

Foods rich in __________ make our teeth strong.

• Vitamin C

• Vitamin D

• both of these

• none of these

A sticky layer which is develop on the tooth is known as

• Plaque

• cavity

• digestion

The acids eat through the enamel and make a hole called a___________

• Plaque

• cavity

• infected root

• germs