TEETH

We need to take care of our teeth because:

1. To prevent plaque.

“PLAQUE” (pronounce: PLAK) is a clear layer of
bacteria that sticks your teeth.

2. Healthy teeth help you chew the right food to
help you grow.

3. Help you to speak clearly.

4. Help you look your best.

An X-Ray picture of a set of teeth.

Parts of a tooth

CROWN CROWN
ROOT ROOT



Part of a tooth

Enamel

Teeth are surrounded by a hard substance called ENAMEL.
The enamel is hard that it crush food without breaking.

TWO SETS OF TEETH

1. Milk teeth

Milk teeth start
coming out when

babies are 5 - 8
months old.
There are

20 in total.

TWO SETS OF TEETH

2. Permanent teeth
Usually starts to
develop between

the ages of 16 – 22
years old.

There are 32 teeth in
total.

TYPES OF TEETH

Adult human have 4 types of teeth.

The front teeth is called INCISOR.

FUNCTION:
to cut food like fruits.

Some animals have only incisor teeth because
they eat plants.

These animals are called HERBIVORES
animals.

Next to the incisor teeth are the CANINE teeth.

FUNCTION:
to tear food.

Some animals have only canine teeth
because they eat meat.

These animals are called CARNIVORES
animals.

Next to the canine teeth are the PREMOLAR.

FUNCTION:
To grind and chew food

The inner part of the teeth are MOLAR teeth.

molar

FUNCTION:
To grind and chew food

Pointed shaped for
tearing food
The biggest teeth
for chewing and
grinding food
For chewing and
grinding food
Chisel-shaped for
cutting and biting
food

It is also called
DENTAL CAVITIES / DENTAL CARIES

TOOTH DECAY is the damage of
the outer surface (enamel)
of the teeth.

WHAT CAUSES TOOTH DECAY?

Sugars in food and drinks react with the
bacteria, forming acids.

Bacteria +sugar= acid

These acids attack the
enamel and makes a cavity
(hole) in the tooth.



REMEMBER!!!

✓ Between the age of 5 and 10, the milk teeth will
start to fall out.
✓ They are replaced by permanent teeth.

✓ If the permanent teeth is damaged and need to be
removed, it WILL NOT be replaced again.

How to take
care of our

teeth?

See the dentist
at least once a

year.

Brush teeth at
least twice a

day.

Do not eat too
much sweet

food.

Eat lots of
cheese, milk,

fruits and
vegetables.

Use dental
floss to remove
food between

teeth.