Science at UM [S02-ep13]: From the Resilience of Teeth to the Hummingbird
This week on *A l’UM la science*, Alban Desoutter and Frédéric Cuisinier from the LBN discuss the ripples 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 something, 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 them until your teeth 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, which they’ve dubbed “enamel drapery.” Their findings were published in the journal Archives of Oral Biology.
Read:
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, a secularism expert at the University of Montpellier and the organizer of the lecture on the constitutional principle of secularism, which will be given on February1 at the Aimé Shoening Student Union (Richter Campus) by Gwénaële Calvès, a professor of public law at the University of Cergy-Pontoise.
At UM Science, 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 “A l’UM la science” on Divergence FM 93.9

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