Sex determination and odontometric dimensions – A study of a North Indian population

Sex determination is an indispensable parameter in identifying unknown deceased individuals. It can narrow down the chances of possible matches by 50%, providing a crucial lead in personal identification. In cases of commingled, decomposed, fragm...

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Main Authors: Nandini Chitara, Kewal Krishan
Format: Article
Language:English
Published: Polish Society of Forensic Medicine and Criminology (PTMSiK) 2024-10-01
Series:Archives of Forensic Medicine and Criminology
Online Access: https://ejournals.eu/czasopismo/amsik/artykul/sex-determination-and-odontometric-dimensions-a-study-of-a-north-indian-population
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author Nandini Chitara
Kewal Krishan
author_facet Nandini Chitara
Kewal Krishan
author_sort Nandini Chitara
collection DOAJ
description Sex determination is an indispensable parameter in identifying unknown deceased individuals. It can narrow down the chances of possible matches by 50%, providing a crucial lead in personal identification. In cases of commingled, decomposed, fragmented, charred and unidentifiable corpses, the importance of dental morphometrics cannot be overlooked due to the resistance of teeth to post-mortem degradation. Addressing this quality of teeth, a descriptive cross-sectional study was conducted in a North Indian population to evaluate sexual variations in dental dimensions and to identify the most sexually dimorphic dental dimension. The study included 207 participants (114 females and 93 males) in the age group of 21 to 45 years. Dental casts were prepared after obtaining informed consent from the participants and ethical clearance from the institute’s ethical committee. Six odontometric dimensions, namely incisor-incisor distance, inter canine distance, combined width of central incisors, inter-premolar distance, inter-molar distance, and dental arch height of each participant were recorded on the dental casts using standard procedures. Analysis of the data elucidated the existence of statistically significant sexual dimorphism in the dental dimensions of the participants. The results of the discriminant function analysis show a sex determination accuracy of 68.1%, with a cross-validation accuracy of 65.2%. The study found the incisor-incisor distance to be the most sexually dimorphic trait, making it the best predictor of sex in the present population. The results of the present study may be helpful in sex determination and personal identification from dental remains in medico-legal and disaster victim identification cases.
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issn 0324-8267
1689-1716
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publishDate 2024-10-01
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spelling doaj-art-907bcc6dff3c4af1a1def7f5090ac8912024-11-19T08:53:54ZengPolish Society of Forensic Medicine and Criminology (PTMSiK)Archives of Forensic Medicine and Criminology0324-82671689-17162024-10-01202429710510.4467/16891716AMSIK.24.009.20338Sex determination and odontometric dimensions – A study of a North Indian populationNandini Chitara0https://orcid.org/0000-0002-1903-9592Kewal Krishan1https://orcid.org/0000-0001-5321-0958 Department of Anthropology Department of Anthropology Sex determination is an indispensable parameter in identifying unknown deceased individuals. It can narrow down the chances of possible matches by 50%, providing a crucial lead in personal identification. In cases of commingled, decomposed, fragmented, charred and unidentifiable corpses, the importance of dental morphometrics cannot be overlooked due to the resistance of teeth to post-mortem degradation. Addressing this quality of teeth, a descriptive cross-sectional study was conducted in a North Indian population to evaluate sexual variations in dental dimensions and to identify the most sexually dimorphic dental dimension. The study included 207 participants (114 females and 93 males) in the age group of 21 to 45 years. Dental casts were prepared after obtaining informed consent from the participants and ethical clearance from the institute’s ethical committee. Six odontometric dimensions, namely incisor-incisor distance, inter canine distance, combined width of central incisors, inter-premolar distance, inter-molar distance, and dental arch height of each participant were recorded on the dental casts using standard procedures. Analysis of the data elucidated the existence of statistically significant sexual dimorphism in the dental dimensions of the participants. The results of the discriminant function analysis show a sex determination accuracy of 68.1%, with a cross-validation accuracy of 65.2%. The study found the incisor-incisor distance to be the most sexually dimorphic trait, making it the best predictor of sex in the present population. The results of the present study may be helpful in sex determination and personal identification from dental remains in medico-legal and disaster victim identification cases. https://ejournals.eu/czasopismo/amsik/artykul/sex-determination-and-odontometric-dimensions-a-study-of-a-north-indian-population
spellingShingle Nandini Chitara
Kewal Krishan
Sex determination and odontometric dimensions – A study of a North Indian population
Archives of Forensic Medicine and Criminology
title Sex determination and odontometric dimensions – A study of a North Indian population
title_full Sex determination and odontometric dimensions – A study of a North Indian population
title_fullStr Sex determination and odontometric dimensions – A study of a North Indian population
title_full_unstemmed Sex determination and odontometric dimensions – A study of a North Indian population
title_short Sex determination and odontometric dimensions – A study of a North Indian population
title_sort sex determination and odontometric dimensions a study of a north indian population
url https://ejournals.eu/czasopismo/amsik/artykul/sex-determination-and-odontometric-dimensions-a-study-of-a-north-indian-population
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