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.

If you don't get regular dental check-ups, you may develop periodontitis.

If you don't have regular dental check-ups, you may develop periodontitis.

The saber-toothed tiger is a type of extinct mammal.

Rodents are widely distributed around the world.

In phonetics, a sibilant is used to represent a specific sound.

He gritted his teeth to bear the pain.

He is doing special exercises to strengthen the incisivus labii superioris muscle.