Natural teeth are replaced with teeth made of aircraft ceramic.

This meant that all the teeth were being continually replaced.

The teeth were continually replaced, taking about half a year to form.

Its sharp teeth could be replaced when lost, a trait also seen in modern day sharks.

Older teeth on top were continually replaced by the teeth underneath them.

His bad teeth had been replaced by new dentures.

All primary teeth are normally later replaced with their permanent counterparts.

The chewing teeth are replaced six times in a typical elephant's lifetime.

As with all elasmobranchs, these teeth fall out and are replaced continuously.

The teeth of reptiles are replaced constantly during their life.