Задание

Match the following words and phrases with their meanings.

calcium

tooth decay

toothpaste

milk teeth

acid bacteria

enamel

permanent teeth

fluoride

they replace milk teeth

the process in which teeth become gradually damaged

the hard glossy substance that covers the crown of a tooth

a soft white element which is found in bones and teeth

the first teeth that grow in your mouth

a soft substance which you put on your toothbrush and use to clean your teeth

a mixture of chemicals that is sometimes added to toothpaste because it is considered to be good for people's teeth

very small organisms