2. Describe the structure of a tooth with the help of
diagram
Answers
➛The tooth has hard outer covering called enamel. The part of tooth below enamel is called dentine inside which is the pulp cavity. The pulp cavity contains nerves and blood vessels.
See the attachment also.
STRUCTURE OF A TOOTH
Teeth are fixed into the gums. Each tooth has the following parts :
▪Root : The part of a tooth embedded into
the jaw.
▪Crown : The top part of the tooth outside the gums.
▪Neck : The part between the root and the crown.
The tooth internally is made up of
▪Enamel : It is the white part of a tooth and it is the hardest substance in our body. It is deposited outside the crown of the tooth. Enamel contains calcium salts.
▪Dentine : Dentine is like a bone structure. It is hard.
▪Pulp Cavity : Inside the dentine, there is a soft pulp cavity which contains blood vessels and nerves.