Sea Otters Help Researchers Explain Tooth Strength

Did you know that sea otters have teeth that are very similar to that of humans?

It’s true and an investigation into the two species, with emphasis on the teeth has led to an even more amazing discovery.

The research was done by a team from both George Washington University and the National Institute of Standards and Technology in Gaithersburg, MD.

The study of the structure of the teeth led to a more in depth look at tufts. These small cracks in the enamel, which form even before the teeth erupt through the gum line, were discovered long ago.

However, this most recent research points to the significant role they play in maintaining the structure of the teeth through many years of use and abuse.

It became apparent during the examination that the tufts, combined with a basket weave-type composition of the enamel, were able to evenly distribute stresses place on the tooth to prevent actual damage to the tooth.

Furthermore, it was found that if slightly extension of the cracking did occur, there was a type of natural repair that took place, which involved organic material seeping into the tiny spaces and serving to strengthen the bond between the walls of the imperfection.

The tufts were also filled with this material, providing them increased strength as they defended against actual damage to the enamel – the outermost layer of the tooth, which acts as a barrier against external forces.

For more information on these important findings, you can continue reading the full article.