In the Edo period, women blackened their teeth as a symbol of beauty.

My toothache is very painful.

The tooth of the zipper on my jacket broke.

He is listening to music using Bluetooth.

My gums hurt.

His teeth have strong dentin, making them less prone to cavities.

Toothed whales are a type of marine animal, and as the name suggests, they have teeth.

When he eats an apple, he uses his incisors to bite it off.

He is brushing his upper teeth.

He is conducting research on the radula of mollusks.