Nondestructive adult age at death estimation: Visualizing cementum annulations in a known age historical human assemblage using synchrotron X-ray microtomography

Autor: Simon Hillson, Valentin Ruano Rubio, Adeline Le Cabec, Nancy Tang
Přispěvatelé: Department of Human Evolution [Leipzig], Max Planck Institute for Evolutionary Anthropology [Leipzig], Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, European Synchrotron Radiation Facility (ESRF), Data Science Data Engineering, Broad Institute, Institute of Archaeology, University College London, London, UK
Rok vydání: 2018
Předmět:
0106 biological sciences
Adult
Male
Cuspid
X-ray microtomography
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory
[SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropology
Population
Pilot Projects
Biology
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
010603 evolutionary biology
01 natural sciences
Adult age
Anthropology
Physical
Young Adult
[INFO.INFO-IM]Computer Science [cs]/Medical Imaging
medicine
Assemblage (archaeology)
Humans
0601 history and archaeology
Cementum
Life history
education
Aged
Orthodontics
Estimation
Aged
80 and over
Dental Cementum
education.field_of_study
060101 anthropology
[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE]
06 humanities and the arts
X-Ray Microtomography
Middle Aged
Unknown age
virtual histology
medicine.anatomical_structure
adult age at death
Anthropology
Female
Anatomy
Age Determination by Teeth
propagation phase contrast
cementochronology
Synchrotrons
Zdroj: American Journal of Physical Anthropology
American Journal of Physical Anthropology, Wiley, 2019, 168 (1), pp.25-44. ⟨10.1002/ajpa.23702⟩
ISSN: 1096-8644
0002-9483
Popis: International audience; Objectives: Adult age at death estimation continues to challenge physical anthropologists. One estimation method involves counting tooth cementum annulations (TCA). Non-destructively accessing TCA is a critical step to approaching fossil teeth of unknown age and to verifying life history profiles of human ancestors. This pilot study aims to (a) non-destructively image TCA in teeth from a known age archeological human population by propagation phase contrast X-ray synchrotron μCT (PPC-SR-μCT) (b) test the correlation between real and estimated ages, and the accuracy, precision and bias of age estimates. Materials and Methods: We examine 20 permanent human canines (aged 20-81 years), from a 18th to 19th century known age collection from St. Luke's Church (London, England). We scanned transverse segments of acellular cementum in the apical portion of the middle root third using PPC-SR-μCT. We generated virtual transverse sections on which two observers perform two sessions of blind TCA counts. We calculate the estimated ages at death by adding 10 years to the TCA counts. Results: A moderately strong positive linear relationship exists between real and estimated ages (r = 0.76, p < .001), with an average inaccuracy of 16.1 years and an average bias towards underestimation of 15.7 years. This difference is lower in individuals 50 years (24.9 years, n = 10). Discussion: We reliably imaged and identified TCA in individuals
Databáze: OpenAIRE
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