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Teeth types
INCISORS
Shape: flat teethLocation: in front of the mouth
Function: cut the food
CANINES
shape: sharp and pointed Location: on the four sides of the mouth
after the incisors(up and down)Function: hold and tear the food
Molars
Shape :flat and wideLocation: at the back of the mouthFunction: grind and chew the food
Let’s sing together
Incisors cut the foodCut the foodCut the food
Incisors cut the foodBut
Canines tear and hold
Canines tear and holdTear and holdTear and hold
Canines tear and holdBut
Molars grind and chew
Human teeth
• Human have two sets of teeth• Milk (baby) teeth• Permanent teeth
Milk teeth
Total number of the milk teeth is 20 tooth
• Incisors: 8 ( 4 up + 4 down)• Canines: 4 (2 up + 2 down)• Molars: 8 (4 up + 4 down)• No premolars in the child’s teeth.
Permanent teeth
Total number of the permanent teeth is 32 tooth
• Incisors: 8 ( 4 up + 4 down)• Canines: 4 (2 up + 2 down)• Molars: 20 (10 up + 10 down including 4
premolars)• (The premolars are the first 2 molars at each
molars row)
Permanent teeth
Milk teeth
Tooth decay
Bacteria(Tiny organisms that can’t be seen with our eyes,only by
microscope)
Sugar (From the food particles left on your mouth when you don’t brush
your teeth)
The bacteria will eat the sugar to form yellow spots called : Plaque and get out a waste called acid
Plaque
Sugar + Bacteria
Plaque + Acid
Tooth decay
Tooth decay
Tooth decay
Tooth layers
How to keep your teeth healthy?
Brush your teeth twice a day
2
Use flouride toothpaste to make your teeth
stronger
Eat less sugary food
Visit the dentist twice 2 a year