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

He is brushing his upper teeth.

He is brushing his lower teeth.

He smiled, showing his lower teeth.

He is conducting research on the radula of mollusks.

He died young.

He is dedicated to the study of the dentary bone.

If you don't brush your teeth every day, dental plaque can accumulate and potentially cause cavities.

While waiting for the test results, he gritted his teeth.

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