Accuracy of Demirjian's and Indian-specific formulae in age estimation using eight-teeth method in Kanyakumari population

Akhil, S; Joseph, T Isaac; Girish, KL; Sathyan, Pradeesh

doi:10.4103/ijdr.ijdr_768_17

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…In the literature related to age determination, it is calculated how important population-related reference tables are in the application in order to achieve a more exact approximation of biological age (source). Tooth stages differ in different populations at the same age [ 41 , 54 , 55 ]. In contrast, two reviews by Rolseth et al indicate that there is no conclusive statistical certainty in the population-based differentiation of stages because of age mimicry and a heterogenous study design that, consequently, means they are not comparable with each other [ 56 , 57 ].…”

Section: Discussionmentioning

confidence: 99%

Forensic Age Estimation: A Multifactorial Approach in a Retrospective Population Study

Bjelopavlovic,

Reder,

Fritzen

et al. 2023

Diagnostics

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Objectives: The objective of this study was to evaluate the accuracy of forensic age estimation in a German population by combining clavicle and wisdom teeth assessments based on cone beam computed tomography (CT) data. The study aimed to determine the reliability of this approach in predicting biological age. Material and Methods: A total of 161 CT data sets from 120 males and 41 females with known exact ages were evaluated by three raters. The clavicle was assessed according to stages 1–5 (including substages 2a–c and 3a–c), and the Demirjian stage’s classification method was used for the wisdom teeth. Inter-class correlation (ICC) was calculated to assess the agreement among the three raters. Additionally, ordinary least square regressions were performed to predict chronological age using the clavicle or one of the four teeth. Finally, age prediction models using multiple indicators were developed. Results: The ICCs ranged from 0.82 for the clavicle to 0.86 and 0.88 for the wisdom teeth. Linear estimation tended to overestimate chronological age, especially in subjects over 18 years old. The clavicle showed the strongest overestimation. Combining age estimation from the clavicle with the upper and lower wisdom teeth improved the predictive power, resulting in a 14% and 15% increase in R² for the upper and lower wisdom teeth, respectively. Adding more than one tooth to the prediction did not improve the predictive power (all ΔR² < 1%). Conclusions: Age estimation using CT can be significantly improved by combining information from the analysis of wisdom teeth with age estimation based on the clavicle.

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Section: Discussionmentioning

confidence: 99%

Forensic Age Estimation: A Multifactorial Approach in a Retrospective Population Study

Bjelopavlovic,

Reder,

Fritzen

et al. 2023

Diagnostics

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“…[ 11 ] Several population-based studies have validated this method. [ 12 13 14 ] Chronologically, the third molar is the only tooth that is developing till the age of 25 years. [ 15 ] On average, the apex closure of the third molar occurs at the mean age of 21.96 years.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the mineralisation stages of third molars and validation of Mincer et al.’s age estimation method: A retrospective, cross-sectional study in Western India population

Pillai,

Dodia,

Monpara

et al. 2023

Journal of Oral and Maxillofacial Pathology

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Context: Age estimation is one of the prime requisites in forensic human identification cases and the criminal justice system. There are several age estimation methods using dental parameters. A method proposed by Mincer et al. which uses the mineralization stages of third molars based on Demirjian’s developmental stages is less tested in the Indian population. Aim: The present study aimed to assess the developmental status of the third molars and to apply and validate Mincer et al.’s method on the Western India population. Methods and Material: A total of 306 orthopantomograms (OPGs) from 128 males and 178 females with a mean age of 16.89 years ± 3.68 were analysed. Demirjian’s A-H staging was applied to record the developmental stages of 1100 third molars. Mincer et al.’s mean age of attainment was applied based on the American Whites (Caucasian) population for males and females separately using stages of #18 and #38. Results: There was a slight overestimation of the chronological age (CA) in both #18 and #38. The females showed more accurate estimated age (EA) than males. Conclusions: Mincer et al.’s method is a convenient age estimation method using the third molar’s developmental stage. The mean age of attainment mentioned in the original Mincer et al.’s study can be used in the Western Indian population, with a residual value ranging from 0.21 to 0.25 years.

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Dental age estimation methods applied to Indian children and adolescents: A systematic review and meta-analysis

Shoukath,

Vidigal,

Vieira

et al. 2024

Morphologie

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Accuracy of Demirjian's and Indian-specific formulae in age estimation using eight-teeth method in Kanyakumari population

Cited by 4 publications

References 13 publications

Forensic Age Estimation: A Multifactorial Approach in a Retrospective Population Study

Forensic Age Estimation: A Multifactorial Approach in a Retrospective Population Study

Assessment of the mineralisation stages of third molars and validation of Mincer et al.’s age estimation method: A retrospective, cross-sectional study in Western India population

Dental age estimation methods applied to Indian children and adolescents: A systematic review and meta-analysis

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