Cavities form when enamel gone.

Meaning: When the enamel on your teeth is damaged, it can lead to the formation of cavities.

Choice of Words: Cavities are holes in your teeth caused by decay. Form means to come into existence or being. When is used to indicate a time or occasion. Enamel is the hard, outer layer of your teeth. Gone means no longer existing or present.

Alternative Expressions

Holes in teeth happen when white stuff gone.

Meaning: This sentence means the same as the first sentence, but uses simpler words.

Choice of Words: **Holes in teeth** is another way to say cavities. **White stuff** is a simple way to describe enamel, the hard, white outer layer of your teeth. When **white stuff** is **gone**, it means it has been worn away or damaged.

Tooth problems start when tooth shield disappears.

Meaning: This sentence means the same as the first two sentences, but uses more descriptive language.

Choice of Words: **Tooth problems** is a general term for any problems with your teeth, including cavities. **Tooth shield** is another way to describe enamel, the hard, white outer layer of your teeth that protects them from damage. When **tooth shield** **disappears**, it means it has been worn away or damaged.

Related Expressions