Multivariate analysis of nonmetric traits in permanent anterior teeth: A forensic overview

Baby, Tibin K; Sunil, S

doi:10.4103/ijfo.ijfo_3_19

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…The NCDT frequencies collected in the present study can be compared with a limited number of ASU-DAS-based studies. ASUDAS-based studies have been conducted on few Indian geo-population parts including the region of Ajnala (Amritsar) (Acharya and Sehrawat 2021), Bengaluru (Smitha et al 2018;Venkatesh et al 2019), Odisha (Nair et al 2020) and Kerala (Baby and Sunil 2019;Baby et al 2017;Nair et al 2020). After careful appraisal of literature, we compiled a comparative analysis table of various ASUDAS-based Indian studies (Table 6).…”

Section: Discussionmentioning

confidence: 99%

Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population

Chowdhry

Popli

Sircar

et al. 2023

Egypt J Forensic Sci

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Background The non-metric dental crown traits (NDCT) can vary within and between the geo-populations. These play a critical role in the ethnicity determination and help in identification of an individual. A commonly used system for scoring these dental traits is “Arizona State University Dental Anthropology System” (ASUDAS). Aim and objectives Our study aims to evaluate the frequency trend of twenty NDCT traits in the India, National Capital Region population using ASUDAS, and check for any significant sexual dimorphism for each trait. Methods The maxillary and mandibular dental casts from 200 patients (100 males+100 females, age 18–30 years) reporting to the dental OPD of a Government dental college were evaluated. Twenty dental crown traits were scored as per ASUDAS protocol in each dental cast by three investigators independently. NDCTs were tabulated and the chi-square test was performed for calculation of the P value. Results The results showed that the trait cusp number (83%) and lingual cusp variation (79%) were the two most frequent NDCTs and Y groove pattern (13%) and premolar accessory cusp-4 (12.5%) were the two least frequent traits observed. Shoveling of the upper lateral incisor (P=0.007), tuberculum dentale (P=0.049), mesial ridge (lingual) (P=0.034), and hypocone absence (P=0.001) were found to show statistically significant sexual dimorphism (P < 0.05). Although grade-wise expression of shoveling in upper lateral had statistically significant sexual dimorphism and the frequency of higher expression grades was found more in females, overall dichotomy of expression was not significant. Similarly, although an expression of grade-wise tuberculum dentale, mesial ridge (lingual) and hypocone absence had statistically significant sexual dimorphism, an overall dichotomy of expression was not significant. Conclusion The current study shows certain NDCTs like cusp number and lingual cusp variation have a significant association with the NCR population. Sexual dimorphism was not significant; hence, future studies should be planned on a large sample with sex pooled data for each precise location and ethnicity in all the regions of India. This can be further correlated with different facial forms and dental occlusal patterns, for correlation with abnormalities in jaws and teeth.

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Section: Discussionmentioning

confidence: 99%

Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population

Chowdhry

Popli

Sircar

et al. 2023

Egypt J Forensic Sci

View full text Add to dashboard Cite

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Stereomicroscopy – A Potential Technique for Forensic Dental Profiling

Patel,

Patel

2024

Journal of Microscopy and Ultrastructure

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“Forensic odontology” is concerned with the proper handling, inspection, and assessment of dental evidence as well as the correct analysis and representation of dental findings. An odontologist is regularly called upon to help identify unknown human remains and dental evidence recovered from crime scenes and disasters. Dental profiling is the study of teeth and their surrounding structures with the goal of determining a victim’s identity. One can estimate an individual’s age, gender, and ethnicity using dental profiling. It can also be used to determine dental anthropological features such as personal habits, diet, nutritional deficiencies, oral health, and social class. Dental profiling can be done in a number of ways by either invasive or noninvasive methods. By studying and examining solid samples with complicated surface topography for macro features, stereomicroscopy is one of the ways that might be useful in it. Such a technique could be useful for both invasive and noninvasive dental profiling approaches. Stereomicroscopy refers to a microscopic technique that can be used for stereoscopic viewing or three-dimensional imaging with depth and contrast perception; it is essential for interpreting specimen structure. A stereomicroscope or dissecting microscope is a device used to observe a sample at a low magnification utilizing light reflected off the object’s surface rather than transmitted through it. This paper provides an overview of the stereomicroscope’s usage, applications, and benefits in microscopic forensic dental profiling.

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Multivariate analysis of nonmetric traits in permanent anterior teeth: A forensic overview

Cited by 2 publications

References 3 publications

Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population

Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population

Stereomicroscopy – A Potential Technique for Forensic Dental Profiling

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