RT Journal Article
T1 Sexual dimorphism in the enamel‐dentine junction (EDJ) of permanent canines of European modern humans
A1 García Campos, Cecilia
A1 Yacobi Izquierdo, Cecilia
A1 Modesto Mata, Mario
A1 Martín-Francés Martín de la Fuente, Laura
A1 Martínez de Pinillos, Marina
A1 Martinón Torres, María
A1 Perea Pérez, Bernardo
A1 Bermúdez de Castro, José María
A1 García Martínez, Daniel
AB ObjectivesDental anthropological investigations into sexual dimorphism have conventionally concentrated on evaluating the dimensions and configuration of the enamel cap of canines. However, the morphology of the crown dentine surface can be closely linked to that of the enamel surface. This link can facilitate examination of crown morphology even when the enamel surface is slightly worn. Here, we determine if the morphology of the enamel‐dentine junction (EDJ) differs within (maxillary vs. mandibular) and between a sample of male (n = 26) and female (n = 21) contemporary human permanent canines from Europe.MethodsThe morphological data of the EDJ were gathered employing a template comprising 96 landmarks and sliding semilandmarks. Subsequently, the data underwent analysis through form space principal component analysis following Procrustes registration, utilizing standard 3D geometric morphometric techniques.ResultsSignificant differences in the morphology of the EDJ were observed between the sexes, particularly concerning the overall shape of the crown, the symmetry of the mesial and distal edges, and the development of the distal accessory ridge.ConclusionsSex differences in the morphology of the EDJ could relate in part to retention of the canine‐premolar honing complex in males. Our results indicate that analyses of the permanent canine EDJ may potentially provide a novel method for estimating the sex of adult and nonadult skeletons.
PB Wiley
SN 2692-7691
YR 2024
FD 2024-02
LK https://hdl.handle.net/20.500.14352/119651
UL https://hdl.handle.net/20.500.14352/119651
LA eng
NO García-Campos, C., Yacobi Izquierdo, C., Modesto-Mata, M., Martín-Francés, L., Martínez de Pinillos, M., Martinon-Torres, M., Perea Perez, B., Bermúdez de Castro, J. M., & García-Martínez, D. (2024). Sexual dimorphism in the enamel-dentine junction (EDJ) of permanent canines of European modern humans. American Journal of Biological Anthropology, 184(2), e24913. https://doi.org/10.1002/ajpa. 24913
NO Acknowledgments:This study has been supported by the Dirección General de Investigación of the Spanish Ministerio de Economía y Competitividad (MINECO /FEDER) grant number: PID2021-122355NB-C33 and The Leakey Foundation through the personal support of G. Getty (2013) and D. Crook (2014-2020) to M. M.-T. MMM and MMP have received support from the European Research Council within the European Union's Horizon Europe (ERC-2021-ADG, Tied2Teeth, project number 101054659).
NO European Commission
NO European Research Council
NO Ministerio de Economía y Competitividad (España)
NO The Leakey Foundation
DS Docta Complutense
RD 4 may 2025