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Virtual histology of archaeological human deciduous prenatal enamel through synchrotron X-ray computed microtomography images

Nava, Alessia, Mahoney, Patrick, Bondioli, Luca, Coppa, Alfredo, Cristiani, Emanuela, Fattore, Lucinao, McFarlane, Gina, Dreossi, Diego, Mancini, Lucia (2022) Virtual histology of archaeological human deciduous prenatal enamel through synchrotron X-ray computed microtomography images. Journal of Synchrotron Radiation, 29 . pp. 247-253. ISSN 0909-0495. (doi:10.1107/S160057752101208X) (KAR id:91550)

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Virtual histology is increasingly utilized to reconstruct the cell mechanisms underlying dental morphology for fragile fossils when physical thin sections are not permitted. Yet, the comparability of data derived from virtual and physical thin sections is rarely tested. Here, the results from archaeological human deciduous incisor physical sections are compared with virtual ones obtained by phase-contrast synchrotron radiation computed microtomography (SRµCT) of intact specimens using a multi-scale approach. Moreover, virtual prenatal daily enamel secretion rates are compared with those calculated from physical thin sections of the same tooth class from the same archaeological skeletal series. Results showed overall good visibility of the enamel microstructures in the virtual sections which are comparable to that of physical ones. The highest spatial resolution SRµCT setting (effective pixel size = 0.9 µm) produced daily secretion rates that matched those calculated from physical sections. Rates obtained using the lowest spatial resolution setup (effective pixel size = 2.0 µm) were higher than those obtained from physical sections. The results demonstrate that virtual histology can be applied to the investigated samples to obtain reliable and quantitative measurements of prenatal daily enamel secretion rates.

Item Type: Article
DOI/Identification number: 10.1107/S160057752101208X
Uncontrolled keywords: virtual dental histology; prenatal dental enamel; synchrotron X-ray microtomography; enamel daily secretion rates
Subjects: H Social Sciences
Divisions: Divisions > Division of Human and Social Sciences > School of Anthropology and Conservation
Depositing User: Patrick Mahoney
Date Deposited: 12 Nov 2021 11:58 UTC
Last Modified: 09 Jan 2024 15:51 UTC
Resource URI: (The current URI for this page, for reference purposes)

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