Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12136/359
Item metadata
Title: Contribution of dental tissues to sex determination in modern human populations
Authors: García-Campos, Cecilia
Martinón-Torres, María
Martín-Francés, Laura
Martínez de Pinillos, Marina
Modesto-Mata, Mario
Perea‐Pérez, Bernardo
Zanolli, Clément
Labajo González, Elena
Sánchez-Sánchez, José Antonio
Ruiz-Mediavilla, Elena
Tuniz, Claudio
Bermúdez de Castro, José María
Keywords: Canines;Dentine;Dimorphism;Enamel;Microtomography
Issue Date: Jun-2018
Publisher: Wiley
Citation: American Journal of Physical Anthropology, 2018, 166 (2), 459-472
Abstract: Objectives Accurate sex estimation is an essential step for the reconstruction of the biological profile of human remains. Earlier studies have shown that elements of the human permanent dentition are sexually dimorphic. The aims of this study are to determine the degree of sexual dimorphism in the dental tissue volumes and surface areas of mandibular canines and to explore its potential for reliable sex determination. Method The teeth included in this study (n = 69) were selected from anthropological collections from Spain, South Africa and Sudan. In all cases, the sex of the individuals was known. The teeth were scanned and three‐dimensional (3D) measurements (volumes and surfaces areas) were obtained. Finally, a dsicriminant function analysis was applied. Results Our results showed that sexual dimorphism in canine size is due to males having greater amounts of dentine, whereas enamel volume does not contribute significantly to overall tooth size dimorphism. Classification accuracy of the multivariable equations tested on slightly worn teeth ranged from 78 to 90.2% for the crossvalidation, and from 71.43 to 84.62% for the hold‐out sample validation. When all functions were applied together, the sex was correctly assigned 92.30% of the time. Conclusions Our results suggest that the 3D variables from mandibular canine dental tissues are useful for sex determination as they present a high degree of dimorphism. The results obtained show the importance of 3D dental tissue measurements as a methodology in sex determination, which application should be considered as a supplemental method to others.
URI: http://hdl.handle.net/20.500.12136/359
ISSN: 0002-9483
1096-8644
DOI: 10.1002/ajpa.23447
metadata.dc.relation.publisherversion: https://doi.org/10.1002/ajpa.23447
Type: Article
Appears in Collections:Paleobiología
Microscopía y Microtomografía Computarizada



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