Dental health

How long should you brush your teeth for?

• 3 minutes each time

• 5 minutes each time

• 2 minutes each time

• 2 hours each time

Answer explanation

The American Dental Association says you should brush for 2 minutes each time.

How many times a day should you brush your teeth?

• 2 times a day

• 3 times a day

• 1 time a day

• 200 times a day

Answer explanation

The ADA recommends that everyone should brush their teeth twice a day for 2 minutes each time.

What is sign that you should see your dentist?

• When you are hungry.

• When your teeth are clean.

• When your mouth hurts or your gums are puffy.

• Never see a dentist!

Answer explanation

Some other signs you should see a dentist are:

* if your teeth hurt

*if your mouth is very sensitive to hot or cold

*if you have a mouth sore that won't heal

What angle should you hold your tooth brush?

• 45 degree angle

• 90 degree angle

• 1 degree angle

• Any obtuse angle

Answer explanation

A 45 degree angle is recommended because it helps you to reach all your teeth and not hurt your gums.

How much toothpaste do you need on your toothbrush?

• A whole tube.

• The size of a pea

• The size of a quarter

• You should fill up all of the bristles.

Answer explanation

You don't need a lot of toothpaste on your toothbrush! The size of a pea is enough.

How do you clean between your teeth?

• With a hot dog

• With a tree branch

• With floss

• With a hamburger

Answer explanation

Use floss to clean between your teeth.

What was the first toothbrush?

• a pencil

• A twig

• a pinecone

• a lollipop

Answer explanation

The twigs would fray with use, acting like toothbrush bristles.

Where was the first toothbrush invented?

• Japan, in 1987

• Mexico, in 2022

• Germany, in 1489

• China, in the year 1498

Answer explanation

The first toothbrushes had a handle made of bone and boar bristles.

How many permanent teeth do most adults have?

• 20

• 32

• 47

• 4,001

Answer explanation

You have 20 baby teeth and 32 permanent teeth.

True or False, tooth enamel is stronger than bone?

• TRUE

• FALSE

Answer explanation

Tooth enamel is the strongest material in your body. But unlike bone, it can't heal itself.