Premolar

The premolar teeth of mammals are the teeth between the canines and the molars. There are at most a total of eight of them. The number is reduced in the dental formula of many species.

Thumb — Permanent teeth of right half of lower dental arch, seen from above.

As the name suggests, they are like smaller molars, and their function is to crush and grind food.

This short article about biology can be made longer. You can help Wikipedia by adding to it.