Level4-Unit1-Part3-Dental Proble

A dental cavity is a hole in a tooth.

A cavity is caused by bacteria in the mouth.

Brushing your teeth frequently and regularly can help prevent cavities.

A cracked tooth can because by biting down on something hard.

Dentist treat a cracked tooth by covering it with a crown.

A dental x-ray is a picture of your teeth and gums.

And x-ray shows which can’t be seen on the surface of the teeth and gums.

Braces are used to braces are usually for children

They can also be used for adults with crooked teeth.

To extract a tooth means to remove it from the mouth.

Dentist have to pull hard to extract a tooth.