TEETH

Question 1

Describe the location and function of Incisors and canines

Answer 1

At the front of the mouth, used to bite and tear pieces of food

Question 2

Describe the location and function of premolars and molars

Answer 2

At the back of the mouth, where it is used to chew and grind food into smaller sections.

Question 3

Describe enamel and explain its function

Answer 3

Enamel is the hardest substance in our body, it is the part of the crown; it covers the tooth and protects the tissue inside.

Question 4

Describe dentine

Answer 4

Dentine is found underneath the enamel, it is less hard than the enamel, hence will decay easily if the enzyme is worn away.

Question 5

Describe and explain pulp

Answer 5

It is the central part of the teeth, it is made up of soft tissue and contains blood vessels and nerves.

Question 6

Describe cement and explain its function

Answer 6

It covers the root of the tooth while doing so stabilizing it

Question 7

Explain how tooth decay happens

Answer 7

• Plague forms on the enamel, if not removed it turns into tartar.
• When we eat foods containing sugar, the bacteria feed on it,
• The bacteria respire, and as a by-product forms acids
• The acidity dissolves the enamel of the tooth, then the dentine on the inside. This leads to tooth decay.

Question 8

How to prevent tooth decay

Answer 8

Brush regularly using fluoride toothpaste to prevent plague.
Limit sugary foods and drinks
Visit the dentist for regular checkups

Question 9

How does gum disease occur

Answer 9

• It occurs when plaque accumulates around the sides of the tooth and the gingiva
• When the plaque isn’t removed the bacteria work their way down around the roots of the tooth
• The tooth will be unstable and may fall out, if not will have to be removed.