Gender determination using dentition

Dinakaran, J; Dineshkumar, Thayalan; Gunasekaran, Nandhini; Priyadharshini, Natraj; Rajkumar, K

doi:10.4103/0976-433x.149587

Cited by 9 publications

(6 citation statements)

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“…Forensic Odontology is an important aspect of forensic science and has played a major role in human identification. It uses dental and orofacial investigations in providing solutions to legal and criminal issues (Vemuri et al, 2012: Dinakaran et al, 2015. Additionally, it helps in human identification, in mass disasters, bioterrorism, identify a missing person and highly degraded bodies (Nayar et al, 2017;Shah, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…DNA often persists in teeth much longer than in the soft tissues of the body, because the rigid structure of the teeth protects it from degradation (Latham and Miller, 2018). This feature enables its natural ability to survive harsh conditions, a property that forensic scientists and researchers, are maximizing, to aid human identification (Vemuri et al, 2012: Dinakaran et al, 2015. Due to the relatively high degree of physical and chemical resistance of the dental structure to elements such as fire, flames, heat, and explosions, the teeth play an important role in identification and criminology (Morgan et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Effect of different environmental conditions on quality of DNA extracted from human teeth for gender determination

Iroanya¹,

Onuoha²

2022

Bayero J. Pure App. Sci.

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Use of morphological characteristics in human identification maybe difficult in conditions where human remains are grossly fragmented, decomposed and/or mutilated, or when only a tooth is available. The study aims to ascertain and compare the quantity of DNA from teeth exposed to different environmental conditions using organic and silica column DNA extraction methods and determine their gender using amelogenin gene primer. Human teeth were used and divided into four major groups based on different exposure types (buried in soil, storage in Lagoon water, normal environmental condition by placing them on the floor at the botanical garden, and exposure to temperature of 210oC for 15mins). The powdered dentin-cementum complex was used for DNA extraction, quantification and purity assessments. Amplification was done using amelogenin gene primers. Mean DNA concentration and purity were 187.59±26.25ng/μl and 0.97±0.07 respectively for silica column method, and, 138.98±35.71ng/μl and 0.91±0.11 respectively for organic extraction. With organic extraction, the least and highest mean DNA concentration are from teeth immersed in Lagoon water (74.86±61.19ng/μl) and teeth exposed to temperature of 210oC for 15mins (385.14±106.39ng/μl). In the Silica column method, teeth heated at 210oC for 15mins showed the lowest mean DNA concentration (165.57±33.82ng/μl) while teeth exposed to "normal environmental conditions", gave the highest DNA concentration (218.46±45.03ng/μl). Positive and negative male identification were 30.8% and 69.2% respectively, while female identification was 100% positive irrespective of the environmental exposure. The dentine-cementum is a valuable DNA source for forensic investigations. Male identification using amelogenin gene, should still be investigated in the Nigerian context.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of different environmental conditions on quality of DNA extracted from human teeth for gender determination

Iroanya¹,

Onuoha²

2022

Bayero J. Pure App. Sci.

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“…Furthermore, this work presented new equations that will be helpful in estimating crown size of mandibular permanent first molar from mandibular deciduous second molar. resist environmental changes, fire, and postmortem decomposition (2) . Additionally, the fact that most teeth complete development before skeletal maturation makes them a valuable sex indicator particularly in young individuals .…”

Section: Introductionmentioning

confidence: 99%

Accuracy of Deciduous and Permanent Molar Teeth in Gender determination of Egyptian Children: Dental and Forensic Implications

Eldosoky

Elgazzar

Gonna

2020

Egyptian Dental Journal

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“…Forensic odontology is the application of dental sciences for law and criminal investigations. Forensic dentistry is unique because each case is completely different & even the seemingly routine case may take a look at the dentist's ingenuity in applying his dental information [1]. Basically, the theory behind forensic odontology is that, no two mouths are the same, even for identical twins [2].…”

Section: Introductionmentioning

confidence: 99%

Correlation between bizygomatic and maxillary central incisor width for gender identification

Abitha

Santhanam

2019

BDS

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Objective: The aim of the present study is to analyze and evaluate the applicability of bizygomatic and maxillary central incisor width in identifying the sex of an individual for anthropological studies. Material and Methods: The study was conducted on 100 individuals in a private dental institution. The width of the central incisor was measured by requesting the subject to bite onto a sheet of modelling wax. The bizygomatic width was calculated with the help of a divider by taking the most prominent area of the zygomatic arch as the reference point bilaterally. Berry’s formula was used to calculate the width of the maxillary central incisor from the bizygomatic width. Berry’s Formula “Width of the maxillary central incisor = Bizygomatic width / 16.” The data obtained was tabulated and analyzed statistically. Results: The results in our study indicated that the widths of both maxillary central incisors and the bizygomatic width were found to be higher in males when compared to females with a positive strong correlation. Conclusion: The Berry’s index can be used for identifying the gender and can also be used for facial reconstruction.KeywordsBerry’s index; Bite mark; Bizygomatic width; CentralIncisor; Gender identification.

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Gender determination using dentition

Cited by 9 publications

References 0 publications

Effect of different environmental conditions on quality of DNA extracted from human teeth for gender determination

Effect of different environmental conditions on quality of DNA extracted from human teeth for gender determination

Accuracy of Deciduous and Permanent Molar Teeth in Gender determination of Egyptian Children: Dental and Forensic Implications

Correlation between bizygomatic and maxillary central incisor width for gender identification

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