In forensic odontology, teeth are essential components of the stomatognathic system, since they constitute excellent material for research, thanks to their almost indestructible structure and therefore the information linked to their size and characteristics, is extremely useful in determining sex and age. In this study, which corresponds to a sample of 524 lower plaster models (286 male subjects and 238 females) of patients assisted in an orthodontic clinic in Montevideo, Uruguay, the mesiodistal diameter (width), and gingivo-incisal height of the 2 canines and the intercanine distance are measured for sex identification based on odontometric measurements and their ratios. Different binary classifiers from what is known as supervised classification methods are applied in the statistical learning paradigm. Several methods are proposed and their performance is evaluated by working with test and learning samples and evaluating different metrics to measure the accuracy of the models, showing a performance greater than 65%. The details of this project are on the OSF platform in the project.Relaciones Odontométricas en Odontología Forense (Odontometric Relationships in Forensic Dentestry) en https://osf.io/javru/

The authors have declared no competing interest.

This study did not receive any funding

I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.

Yes

The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

It is hereby noted that the Ethics Committee of the Facultad de Odontología - Universidad de la República Uruguay, in its meeting held on August 1, 2013, resolved to approve the research project entitled "Dental Anthropology: Dentist Participation," submitted by Dr. Veronica Gargano and Dr. Alicia Picapedra, file no. 091900-000098-13. The Ethics Committee members are Dr. Ernesto Borgia (Chair), Dra. Sivana Blanco, Dr. Jorge Gutierrez, Dr. Carolina Seade, Dr. Felipe Luzardo, and Social Worker Ema Menoni.

I confirm that all necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived, and that any patient/participant/sample identifiers included were not known to anyone (e.g., hospital staff, patients or participants themselves) outside the research group so cannot be used to identify individuals.

Yes

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Yes

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Yes

↵¤ Facultad de Ciencias Económicas y de administración, Universidad de la República, Montevideo, Uruguay

† Deceased

¶ Membership list can be found in the Acknowledgments section.