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The Leakey Foundation; Agencia Estatal deInvestigacion of the Spanish Ministerio de Ciencia e Innovacion, Grant/Award Number: PID2021-122355NB-C33

Analysis of institutional authors

Garcia-Campos, CeciliaCorresponding AuthorYacobi Izquierdo, CeciliaAuthorGarcia-Martinez, DanielAuthor

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Article

Sexual dimorphism in the enamel-dentine junction (EDJ) of permanent canines of European modern humans

Publicated to:AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY. 184 (2): e24913- - 2024-02-27 184(2), DOI: 10.1002/ajpa.24913

Authors: Garcia-Campos, Cecilia; Izquierdo, Cecilia Yacobi; Modesto-Mata, Mario; Martin-Frances, Laura; Martinez de Pinillos, Marina; Martinon-Torres, Maria; Perez, Bernardo Perea; de Castro, Jose Maria Bermudez; Garcia-Martinez, Daniel

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Abstract

Objectives: Dental 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. Methods: The 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. Results: Significant 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. Conclusions: Sex 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.

Keywords

3d geometric morphometricsAdultAssociationCanineCuspidDental enamelDentinDentineEuropeFemaleGenderHominidHumansLower molarsMaleMicro-ctMicro‐ctMioceneOntogenyPrincipal component analysisSex characteristicsSexual dimorphisSexual dimorphismShapTeethThickness

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 43/54, thus managing to position itself as a Q1 (Primer Cuartil), in the category Evolutionary Biology.

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-05:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 8.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 6 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 58.4.
  • The number of mentions on the social network X (formerly Twitter): 9 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Portugal; United Kingdom.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (GARCIA CAMPOS, CECILIA) and Last Author (GARCIA FIGUEROA, DANIEL).

the author responsible for correspondence tasks has been GARCIA CAMPOS, CECILIA.