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Master Thesis

Diatomées et diffusion passive au niveau des os et des dents : noyade ou diagnostic faux positif

Abstract : Introduction: the diagnosis of drowning is essentially based on the diatom test in the bone marrow. However, this test is currently very controversial because of the many biases and external factors that can influence it, in particular the phenomenon of passive diffusion. Materials and methods: we were interested in the existence of a passive diffusion in pork femurs immersed in an aquarium enriched in diatoms. At the same time, an alternative to the diatom test in the dental pulp was tested according to the same protocol as for the femurs in order to demonstrate the absence of passive diffusion in the dental pulp. Results: in 2 months of immersion and 48 slides made from samples of pork bone marrow, 36 slides revealed the presence of diatoms. For the same immersion time and 24 slides made from dental pulp samples, 3 slides were positive. Discussion: the results in pork bone marrow allowed us to significantly conclude the presence of passive diffusion. The results on dental pulp are encouraging but did not allow us to conclude significantly on an absence of passive diffusion due to the sample size.
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Submitted on : Wednesday, September 22, 2021 - 10:40:53 AM
Last modification on : Friday, October 22, 2021 - 3:44:44 AM
Long-term archiving on: : Thursday, December 23, 2021 - 6:27:15 PM


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  • HAL Id : dumas-03351274, version 1



Jennifer Bertin. Diatomées et diffusion passive au niveau des os et des dents : noyade ou diagnostic faux positif. Sciences du Vivant [q-bio]. 2021. ⟨dumas-03351274⟩



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