The castle was fortified to the teeth, leaving no room for enemy infiltration.

I brush my teeth twice a day.

Babies usually start to teethe around six months old.

The soldiers were armed to the teeth, ready for the impending battle.

She had a row of crooked teeth, but she got them straightened with braces.

She got false teeth to replace her missing ones.

I passed the exam with the skin of my teeth.

She cut her teeth in journalism before moving to fiction writing.