Ask Me Everything1

hy brush our teeth?

Dentists recommend that you brush your teeth for three minutes twice a day to prevent tooth decay and gum disease. Brushing with toothpaste removes plaque—a sticky layer ot bacteria and food that coats the teeth. If the plaque is not removed, it can lead to tooth decay.

How to: chew your food

Premolars Function: Ridged teeth used for crushing and grinding food Number in mouth: 8

George Washington, the first president of the U.S.A., wore false teeth madę from hippopotamus ivory fitted with human teeth and parts of horse and donkey teeth.

Release extra saliva to lubricate your mouth and the food, making chewing easier and sticking food particles together.

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Molars Function: Teeth with a broad surface used to grind food before swallowing Number in mouth: 12

Use your tongue to move the food toward the premolars. The broad crowns and raised edges will crush and tear the food into smaller pieces.

The enamel on your teeth is the hardest substance in your body.

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