Identification of gender using radiomorphometric measurements of canine by discriminant function analysis

Nadendla, Lakshmi Kavitha; Paramkusam, Geetha; Pokala, Archana; Devulapalli, Revath Vyas

doi:10.4103/0970-9290.179810

Cited by 7 publications

(4 citation statements)

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“…1,2 In such cases, presence of jaws of the victim might help in determining whether they are male or female. A number of studies have [11][12][13][14][15][16][17][18] shown that intercanine distance of the dental arch can be a useful variable in sexing of an individual. However, the measurements of distances between other teeth have not yet been studied exhaustively.…”

Section: Discussionmentioning

confidence: 99%

“…The distances of males were larger than those of females. Nadendla et al 16 carried out a study on identification of sex using mandibular intercanine distance. They too observed significant differences between male intercanine distances and female intercanine distances.…”

Section: Discussionmentioning

confidence: 99%

“…7 Though numerous studies are conducted on correlation between sex and tooth size, [8][9][10] there is limited literature on estimation of sex from various dental arch dimensions in Indian population and globally. [11][12][13][14][15][16][17][18] The available literature on estimation of sex using dental arch dimensions is limited to the sex differences between the intercanine arch width.…”

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confidence: 99%

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Estimation of Sex From Dental Arch Dimensions: An Odontometric Analysis

Kanchan¹,

Chugh

Setia³

et al. 2021

Journal of Craniofacial Surgery

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Sex estimation is one of the ''big three'' of human identification and is a vital aspect of the process of generating biological profile of unknown deceased. Anthropometric and odontometric methods that utilize measurement of distances between certain landmarks are commonly employed to differentiate between the 2 sexes. Teeth are the most robust and well-preserved parts of the human body, and studies have shown that the sex of an unknown individual can be estimated using their measurements. The present study was carried out to analyze the sex differences based on the dental arch dimensions of both the jaws in an Indian population. A proper understanding of dental arch dimensions not only help forensic odontologists in human identification, but also help dental practitioners in teeth restoration, and to quantify selection of anterior teeth in bonding of dentures. The dental arch dimensions of the canines, premolars, and the molars of both the jaws were recorded in dental casts of 307 participants. Comparison of the dental arch dimensions of males and females was done and logistic regression models were generated to estimate sex. Receiver Operating Characteristic analysis was done to find out the potential to estimate sex for all the dental arch dimensions in both the sexes. It was observed that maxillary intermolar II distance gave the best results in estimating the sex. The sexing accuracy is seen to increase as we go distally from canines to molars in each jaw; minimum for intercanine distance and maximum for distance between the 2nd molars. The sexing accuracy from dental arch dimensions was found to be between 72.7% and 86.5%. The models derived for estimation of sex from dental arch dimensions can be used in cases of skeletal remains.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Estimation of Sex From Dental Arch Dimensions: An Odontometric Analysis

Kanchan¹,

Chugh

Setia³

et al. 2021

Journal of Craniofacial Surgery

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“…There are different examples of application of imaging techniques for measuring teeth or dental arches, starting from conventional optical and X-ray flat surface imaging [33][34][35] to more widely used in dental research today 3D reconstructions. 3D imaging for odontological studies includes different approaches as well: from rarely used contact scanning [30] to various types of remote methods.…”

Section: Imaging Techniquesmentioning

confidence: 99%

New Approach to Dental Morphometric Research Based on 3D Imaging Techniques

2021

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Recent progress in imaging and image processing techniques has provided for improvements in odontological research in a variety of aspects. Thus, the presented method has been developed precisely in order to assess metrically 3D reconstructions of teeth. Rapidly and accurately obtained data of a wide range and appropriate density are sufficient enough for morphometric studies rather than tooth size assessments which are inherent to conventional techniques. The main contributions providing for holistic and objective morphometric analysis of teeth are the following: (1) interpretation of basic dental morphological features; (2) automated of orientational coordinate system setup based on tooth surface analysis; (3) new tooth morphometric parameters which could not be obtained through application of conventional odontometric techniques; (4) methodological novelty for automated odontomorphometric analysis pipeline. Application of tomographic imaging, which has been used for obtaining 3D models, expands the proposed method potential further through providing detailed and comprehensive reconstructions of teeth. The current study was conducted on unique material from the archaeological site of Sunghir related to the Upper Palaeolithic period. Metric assessments of external and internal morphological layers of teeth were performed in common orientation and sectioning. The proposed technique allowed more profound analysis of Sunghirian teeth which date back to the times of modern human morphology formation.

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