Applicability of the London Atlas method in the East China population

Zhou, Jiaxin; Qu, Donglin; Liu, Fan; Yuan, Xiaoyan; Wu, Yiwen; Sui, Meizhi; Zhao, Junjun; Tao, Junli

doi:10.1007/s00247-022-05491-8

Cited by 4 publications

(4 citation statements)

References 38 publications

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“…This method is known for the intuitive user-interface and for the robust scientific background. Several studies have tested the performance of the London Atlas worldwide, including in populations from Brazil ( 7 ), China ( 8 ), Korea ( 9 ), Portugal ( 10 ), South Africa ( 11 ) and Thailand ( 12 ). A recent systematic review claimed that the method has an accepTable error rate and proper accuracy for dental age estimation ( 13 ).…”

Section: Introductionmentioning

confidence: 99%

Accuracy of the London Atlas to estimate the age of legal majority in a sample of the Amazon Regio

Afonso,

Moreira,

Boedi

et al. 2024

J Clin Exp Dent

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Background Estimating the age of majority is a challenging task in forensic odontology, especially because the third molars are usually the only developing teeth between the ages of 16 and 21 years. The London Atlas emerged as an alternative to estimate age using dental development, eruption and deciduous root resorption as parameters. The method has performed well in young age categories, while its performance for age estimation via third molars has been disputed. The present study tested the performance of the London Atlas to estimate the age of legal majority in a sample of individuals from the Amazon Region. Material and Methods The sample consisted of 1.256 panoramic radiographs of women (n = 694) and men (n = 562) between 16 and 22.9 years. The method was applied to the maxillary (#28) and mandibular (#38) left third molars. For comparative purposes, the sample was divided into seven age groups: 16├ 16.99; 17├ 17.99; 18├ 18.99; 19├ 19.99; 20├ 20.99; 21├ 21.99; and 22├ 22.99 years. Chronological and estimated ages were compared descriptively by means of mean absolute errors (MAE) and root mean squared errors (RMSE), as well as through Receiver Operating Characteristic (ROC) curves and their area under the curve (AUC). Results The MAE of the age estimates using tooth #28 was 1.76 years for females and 1.52 years for males. When the tooth #38 was used, the MAE for the females and males were 1.68 and 1.51 years, respectively. The MAE and RMSE increased in ascending order between age categories. Tooth #28 led to 74% of correct classifications around the age of legal majority, while tooth #38 reached 77%. The area under the curve was 0.75 for tooth #28 and 0.73 for tooth #38. Conclusions The London Atlas should be used carefully to estimate the age of legal majority and not as a single method when the age threshold is 18 years. Key words: Age determination by teeth, forensic dentistry, forensic science, third molar.

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Section: Introductionmentioning

confidence: 99%

Accuracy of the London Atlas to estimate the age of legal majority in a sample of the Amazon Regio

Afonso,

Moreira,

Boedi

et al. 2024

J Clin Exp Dent

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“…The LD is generally regarded as simpler, faster, and more intuitive than the scoring techniques. Various populations have validated the LD [ 9 , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] ], however, no studies have reported the applicability of LD in the Korean population, necessitating its validation before its implementation in Korean forensic practice. This study aimed to assess the suitability of the LD for Koreans in forensic practice by analyzing its bias and accuracy.…”

Section: Introductionmentioning

confidence: 99%

Validation of London Atlas for forensic age estimation in Koreans by comparing with Lee's and Willems' methods

Cheong,

Roh,

Kumagai

et al. 2023

Heliyon

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“…The most widely used method is the assessment of the crown and root formation stage. Radiology plays an indispensable role in human age [10]. The aim of this study is to assess the developmental stages of the mandibular third molar for estimation of dental age in different age groups.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Dental Age by Mandibular Third Molar Through Digital Orthopantomogram Using Modified Demirjian Method In South Indian Population Visiting A Dental College- A Retrospective Study

Veluchamy,

Achuthan,

Pancharethinam

2023

IJForenO

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Aim: The aim of this study was to evaluate the applicability of Demirjian’s method for dental age assessment in a group of South Indian population and to develop an age-predictive equation suitable for the studied group. Subjects and methods: In this retrospective, blind, cross-sectional study, 120 Digital Orthopantomograms were selected from the archived medical files of patients attending Dental College and evaluated to estimate dental age. Results: Age was over estimated for almost all of the studied subjects with an accuracy range from 0.18 to 1.19 years for males and from 0.08 to 0.87 years for females, with the exception of two age subgroups Conclusion: Demirjian’s method is very useful and suitable for the South Indian population. The development of a prediction equation and the introduction of adaptable conversion tables to transform the maturity score into a dental age for the South Indian population with population-specific samples may be suitable alternatives.

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Applicability of the London Atlas method in the East China population

Cited by 4 publications

References 38 publications

Accuracy of the London Atlas to estimate the age of legal majority in a sample of the Amazon Regio

Accuracy of the London Atlas to estimate the age of legal majority in a sample of the Amazon Regio

Validation of London Atlas for forensic age estimation in Koreans by comparing with Lee's and Willems' methods

Estimation of Dental Age by Mandibular Third Molar Through Digital Orthopantomogram Using Modified Demirjian Method In South Indian Population Visiting A Dental College- A Retrospective Study

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