"our results confirm that the skeleton is not a static structure, but rather dynamic," he says Paola Cerrito of the Department of Anthropology at New York University. "We focused on the role of the cementum, the tissue that covers the root of the teeth, the shape of the layers similar to the rings of a tree," explains Shara Bailey , a lecturer at the Department of Anthropology at NYU. "We evaluated the hypothesis that events that are psychologically and biologically significant, such as the menopause and reproduction in women or the stay in prison and systemic diseases in men, can have an impact on these structures, causing changes in scientifically predictable," adds the Bin Hu , a researcher at the College of Dentistry at NYU.
"the analysis of the microstructure of the root cement through an examination under the microscope, it was possible to observe the organization of the fibers and the particles that make up these dental structures," says Cerrito, who is a graduate of the University of Rome La Sapienza. His team has analyzed about 50 dental arches the human of individuals between the ages of 25 and 69 years of age, which is considered to be a history note and data on lifestyle, such as the presence of chronic diseases or the environment in which the subjects lived.
"We got the most information through interviews with relatives, and then we used a series of imaging techniques to observe the conformation of the cementum, in order to highlight the correlation between the structure of the tooth and the significant events in the life of the subjects," continues the researcher. "The teeth respond to the stimuli arising from the external environment and from the physical conditions of the body, for this make an archive with valuable information, which can be viewed as the rings of the trees," says Cerrito.
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