The Teeth

Question 0

Name the 4 types of teeth and give their functions.

Answer 0

Incisors~ Sharp- bite and cut food
Canines~ Pointed- tear food
Pre-Molars~ Double Pointed- chew and grind food
Molars~ Large- chew and grind food

Question 1

Name the 3 functions of teeth.

Answer 1

i) help digestion of food (chewing)
ii) help you to speak properly
iii) they look attractive

Question 2

Draw and label the structure of teeth (this structure applies to all teeth)

Answer 2

Page 29 in hardback

Question 3

Give the name and function of all the tooth stuff (enamel, cementrum etc) [5]

Answer 3

Enamel~ hard substance that protects tooth
Dentine~ soft bone under enamel
Pulp Cavity~ centre of tooth with blood vessels and nerves
Cementrum~ layer around root and hold tooth in place.
Periodontal Fibres~ very small and hold tooth in bone

Question 4

What is plaque made up of?

Answer 4

It is made up of food particles, saliva and bacteria.

Question 5

Where does plaque build up?

Answer 5

It builds up on the surface of the teeth especially near the gums and between the teeth.

Question 6

What is tartar?

Answer 6

It is hardened plaque.

Question 7

What does Tartar do?

Answer 7

It stains the teeth.

Question 8

What happens when plaque/tartar is not removed?

Answer 8

If they are not removed acids are produced which attack the enamel.(tooth decay)

Question 9

What is main cause of tooth decay?

Answer 9

Eating too much sugar.