UM atUM [S02-ep13]: From the Resilience of Teeth to the Hummingbird

This week on *AUM science*, Alban Desoutter and Frédéric Cuisinier from the LBN discuss the folds in tooth enamel, a discovery that could explain why our teeth are so strong. The segment also introduces *Colibri*, the world’s lightest extracorporeal circulatory support system, and Jean-Paul Udave invites you to a lecture on the constitutional principle of secularism.

To have a tooth for someone, or to have a grudge against someone—often a stubborn tooth, or why not a hollow one if you’ve got fangs. Fangs to bite into life with gusto, or, on the contrary, to gnash your teeth until they grind. Expressions referring to our canines, molars, and other incisors pepper our vocabulary, reflecting the importance we place on our teeth. In psychoanalysis, Carl Jung and others even interpreted dreams featuring falling teeth as a sign of fear or resistance to change. Don’t smile, because it’s likely to spare the little ones from breaking their teeth on this anxiety that our imaginations, armed to the teeth, finally gave birth to a mouse to retrieve those little teeth and peace of mind without waiting for the chickens to grow teeth.

As you can see, today’s topic has us gaping in amazement as we discuss a scientific discovery that could explain why our teeth are so strong. Alban Desoutter and Frédéric Cuisinier both work at the Bioengineering and Nanosciences Laboratory in Montpellier—the former as a technical assistant and doctoral student, the latter as Professor. Using 3D technology, they discovered a mysterious structure hidden within our teeth, dubbed “enamel drapes.” Their findings were published in the journal Archives of Oral Biology.

Recommended reading:

The publication: "Human Tooth Enamel Tuft Drapes Revealed by Microtomography," by A . Desoutter, I. Panayotov, F. Cuisinier, and D. Carayon, *Archives of Oral Biology*, September 2022.  

Draped tufts: a tooth structure revealed in 3D may finally explain its high strength, Sciences et avenir, November 18, 2022

In the second half of the program, we take you to Montpellier University Hospital, specifically to the anesthesia and intensive care unit at Arnaud de Villeneuve Hospital, where Dr. Philippe Gaudard introduces us to the Colibri, the world’s lightest extracorporeal circulatory support system.

Finally, our last guest is Jean-Paul Udave, who serves as the secularism advisor at the University of Montpellier and is organizing the lecture on the constitutional principle of secularism to be given on February1 at the Aimé Shoening Student Center (Richter Campus) by Gwénaële Calvès, a professor of public law at the University of Cergy-Pontoise.

AtUM , you’ve got the program—let’s get started!

Co-production: Divergence FM / University of Montpellier
Host: Lucie
Lecherbonnier
Interview:
Lucie Lecherbonnier / Aline Périault
Reporting and editing: Aline Périault
Director: Tom Chevalier

Tune in to the show “AUM science” on Divergence FM 93.9


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