Structure of tooth

Question 1

Root

Answer 1

part of the tooth embedded in the gum

Question 2

Crown

Answer 2

Part of the tooth that is visible

Question 3

Enamel

Answer 3

Hardest substance made by animals, a thin layer that covers the crown

Question 4

Dentine

Answer 4

Layer under enamel, not as hard as enamel. It has channels which contain cytoplasm, made of living tissue which secretes a hard mineral substance, nourished by pulp

Question 5

Pulp cavity

Answer 5

Soft connective tissue that contains nerves and blood vessels. Found at the middle of the tooth. Extends from the crown to the tip of the root. Blood vessels present carry oxygen and nutrients in for the cells and remove waste products

Question 6

Cement

Answer 6

Bone like tissue that covers the root. Has fibre that attach root of tooth to the gums and jawbone.

Question 7

Root fibres

Answer 7

Attach teeth to jaw bone. allow teeth to move slightly when biting/chewing

Question 8

Gum

Answer 8

Protects jawbone and roots of teeth

Question 9

Jawbone

Answer 9

Has sockets for teeth