The Teeth Flashcards
We grow two sets of teeth in our life and they are :
Primary teeth
Permanent teeth
How many primary teeth do we have
20
How many permanent teeth do we have
32
How many molars do we have and what do they do
12 > grind
How many premolars do we have and what do they do ?
8> chew
How many canines do we have and what do they do ?
4> tear
How many incisors do we have and what do they do?
8> bite
Stucture of the tooth :
The crown =
Visible in the mouth
Structure of the tooth :
The root :
Embedded in the jaw
Most of the tooth is composed of a hard substance called ______. The crown is covered in ________ which is the hardest substance in the body. In the centre of the tooth is the _______ ________. It’s held in place by ________.
Dentine
Enamel
Pulp cavity
Cementrum
What does fluoride do =
Helps protect teeth from decay
What is plaque
Mixture of saliva, food particles and bacteria which builds up as a sticky coating on the teeth
What does fluoride do
Mineral which strenghtens tooth enamel so it can resist plaque which causes decay
Healthy teeth and gums are important for the following reasons :
Help you digest food properly
Adds to your appearance
