Dental caries, or tooth decay, is the most widespread noncommunicable disease worldwide. According to the Centers for Disease Control and Prevention, more than $45 billion is lost in productivity in the U.S. each year, with untreated dental diseases as the number one cause. Scientists have long struggled to study the composition and structure of tooth.
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As part of a restoration project, archaeologists in Mexico City recently excavated a portion of Huei Tzompantli an ancient Aztec tower, which sits below street level. During the process, they unearthed 119 human skulls embedded in a wall.
While definitely momentous, it’s not wholly surprising. As
tzompantli is essentially a giant rack that the Aztec used to display skulls from human sacrifices and prisoners of war. In the five years since Huei Tzompantli was first discovered, researchers have already counted 484 skulls within the structure, which was likely built sometime between 1486 and 1502. According to CNN, there are female and male skulls in this latest collection, and at least three of the victims were children.