Age estimation from dental evidences-A review

Tabasum, Qutsia; Pathak, R.K.; Sehrawat, Jagmahender Singh; Talwar, Manjit; Harish, Dasari

doi:10.5958/0974-0848.2016.00084.1

Cited by 3 publications

(8 citation statements)

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“…As can happen in mass disasters or in some forensic or archaeological cases, e.g., the recovery of isolated skulls or jaws, charred corpses, and young pre-puberal skeletons, the recovered human remains can offer insufficient evidence for a conclusive sex identification based on common skeletal and genetic analysis. Dental size and traits have been shown to have significative variations between male and female subjects [ 6 , 7 , 8 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ] and odontometric methods in particular have been experimented with in different populations for sex diagnosis. However, odontometrics requires the analysis of numerous dental elements to obtain high levels of reliability ( Table 3 ), thereby the method applicability depends on the kind and the number of retrieved teeth from the human remains.…”

Section: Discussionmentioning

confidence: 99%

“…There is shared agreement in the previous scientific evidence that the two-dimensional measurements of metric methods have some major limitations in terms of their forensic applications since the accuracy of these methods considerably decreases when incomplete dentition is analysed and the obtained results are not satisfactorily consistent to suggest the use of odontometrics as unique tool for sex estimation, whilst morphological methods can offer only a qualitative evaluation largely affected by the operator’s subjectivity and the variability of dental anomalies [ 1 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

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A Semi-Automatic Method on a Small Italian Sample for Estimating Sex Based on the Shape of the Crown of the Maxillary Posterior Teeth

et al. 2023

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Teeth are known to be reliable substrates for human identification and are endowed with significant sexual dimorphism not only in the size but also in the shape of the crowns. In the preliminary phase of our study (already published in 2021), a novel sex estimation method based on dental morphometric geometric (GMA) analysis combined with the artificial neural network (ANN) was developed and validated on a single dental element (first upper premolar) with an accuracy rate of 80%. This study aims to experiment and validate the combination of GMA-ANN on the upper first and second left premolars and the upper left first molar to obtain a reliable classification model based on the sexual dimorphic traits of multiple maxillary teeth of Caucasian Italian adults (115 males and 115 females). A general procrustes superimposition (GPS) and principal component analysis (PCA) were performed to study the shape variance between the sexes and to reduce the data variations. The “set-aside” approach was used to validate the accuracy of the proposed ANN. As the main findings, the proposed method correctly classified 94% of females and 68% of males from the test sample and the overall accuracy gained was 82%, higher than the odontometric methods that similarly consider multiple teeth. The shape variation between male and female premolars represents the best dimorphic feature compared with the first upper molar. Future research could overcome some limitations by considering a larger sample of subjects and experimenting with the use of computer vision for automatic landmark positioning and should verify the present evidence in samples with different ancestry.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Semi-Automatic Method on a Small Italian Sample for Estimating Sex Based on the Shape of the Crown of the Maxillary Posterior Teeth

et al. 2023

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“…[ 1 2 3 4 5 ] Teeth are feasible specimens for gender discrimination, as they resist taphonomic decay, mechanical, thermal and chemical changes. [ 1 2 6 7 8 9 ]…”

Section: Introductionmentioning

confidence: 99%

“…Thus alternative measurements like diagonal measurements or cervical measurements will be required. [ 6 7 ]…”

Section: Introductionmentioning

confidence: 99%

Evaluation and comparison of linear and diagonal odontometry of first molars as a tool for gender discrimination; assessed in a population from Maharashtra

Murgod

Vinodkumar

Vaswani

2023

J Oral Maxillofac Pathol

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Background: Linear odontometry is customarily used in gender determination which can pose difficulties in cases of tooth decay, attrition since they mainly involve the proximal surfaces. Objectives: The present cross-sectional observation study, estimated the efficacy of alternative measurements, that is, diagonal measurements and cervical measurements in gender determination in comparison to routine odontometry. Material and Methods: A total of 200 dental cast models (upper and lower) of 100 individuals (50 male and 50 female) from Maharashtra state were included. Results: Univariate discriminant function analysis showed that, in maxillary molars, MD width gave the highest gender dimorphism of 64%, followed by BL with 62%. In the mandibular teeth, MD gave an accuracy of 75% followed by MB-DL with 73%. Multivariate logistic regression analysis showed that overall diagonal and linear measurements gave the highest dimorphism of 81% with 80% correctly identified as females and 82% as males. The mandibular MD, BL and MB-DL gave an accuracy of 79% with 78% corrected identified as females and 80% correctly identified as males. Mandibular ML-DB and Cervical DB-CML together gave an accuracy of 77% and mandibular MD with75%. Conclusion: Thus, the study proves that diagonal measurements give almost equivalent or better results than linear measurements in gender determination.

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“…Vol. 24 No.1 -April 2020 estimate of dental age, combination of dental growth and anthropometric measurements and combination of skeletal and tooth eruption (30) .…”

Section: Introductionmentioning

confidence: 99%

Radiographic evaluation of third molars development in relation to chronological age among children and youth in Aden city

Abdullah

Al-Aghbari

Mokbel³

2022

Univ. Aden J. Nat. and Appl. Sc.

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The field of dysmorphology has expanded dramatically as the number of recognizable patterns of malformation has more than tripled during the last 30 years. Major congenital anomalies are currently the leading cause of perinatal, neonatal and infant mortality worldwide, including Yemen. A basic method to investigate congenital anomalies is through medical review records at hospitals and child maternity services. A retrospective analytic study through review of medical records was conducted includeding 1920 patients in all major congenital anomalies with a male to female ratio of 2:1 within age range from 1 day to15 years at Al-Sadaqa and Al-Gamhouria Teaching Hospitals, Aden city, Yemen, during January 2000 to December 2007. Digestive system (DTS) 649 (33.8%) formed the commonest major congenital anomalies, followed by circulatory system (CVS) 416 (21.7%), central nervous system (CNS) 273 (14.2%), urogenital system (UGS) 202 (10.5%) and musculoskeletal system (MSK) 137 (7.1%). Generation of the available information will form the basis to reflect the magnitude of these birth defects, their pattern and any associated risk factors. These results will have important implications in planning appropriate preventive, therapeutic and rehabilitative programs. Future plan would include the implementation of innovative health education strategies and standard screening with sophisticated diagnostic procedures.

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Age estimation from dental evidences-A review

Cited by 3 publications

References 0 publications

A Semi-Automatic Method on a Small Italian Sample for Estimating Sex Based on the Shape of the Crown of the Maxillary Posterior Teeth

A Semi-Automatic Method on a Small Italian Sample for Estimating Sex Based on the Shape of the Crown of the Maxillary Posterior Teeth

Evaluation and comparison of linear and diagonal odontometry of first molars as a tool for gender discrimination; assessed in a population from Maharashtra

Radiographic evaluation of third molars development in relation to chronological age among children and youth in Aden city

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