Teeth as machines

Teeth are like machines. They are durable and very precise. Look at the animal world. A lion’s teeth, like most carnivores, are designed to slice meat like scissors.

Horse and sheep molars work like mortars to mill fibrous hard grasses. Mice and beavers have teeth that act as chisels to carve wood and concrete. The human diet requires a variety of different types of teeth that operate in unison with the jaw and a group of masticate muscles to grind food. The front teeth are like power shovels.

The canines are cutters. The bicuspids are pressure molars which act as road rollers. The tongue can be compared to a concrete mixer. There are no spare parts. Once a tooth is gone, it is not replaced.

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