Journal of South Asian Association of Pediatric Dentistry

Register      Login

VOLUME 6 , ISSUE 2 ( May-August, 2023 ) > List of Articles


Assessing the Accuracy of Two Dental Age Estimation Techniques—London Atlas and Demirjian's Methods in Bengaluru Children and Young Adults: A Cross-sectional Study

Umapathy Thimmegowda, Sanchitha Venkatahanumaiah, Jaya A Ramachandra, Amrutha Ujjamma Bennehalli

Keywords : Age estimation, Chronological age, Dental age, Demirjian's approach, Forensic dentistry, London atlas method

Citation Information : Thimmegowda U, Venkatahanumaiah S, Ramachandra JA, Bennehalli AU. Assessing the Accuracy of Two Dental Age Estimation Techniques—London Atlas and Demirjian's Methods in Bengaluru Children and Young Adults: A Cross-sectional Study. J South Asian Assoc Pediatr Dent 2023; 6 (2):71-76.

DOI: 10.5005/jp-journals-10077-3271

License: CC BY-NC 4.0

Published Online: 29-08-2023

Copyright Statement:  Copyright © 2023; The Auhtor(s).


Background: Age estimation is also done on living people in medicolegal cases, including child labor, rape, child marriages, and illegal immigration without sufficient approved documentation. Aim: The aim of the present study was to compare the relative effectiveness of two alternative approaches—London Atlas and Demirjian's methods—in estimating a person's chronological age in a sample population of Bengaluru residents. Materials and methods: From the database archives of the Dental College and Hospital, Bengaluru, and five private diagnostic facilities in Bengaluru, 464 inhabitants of Bengaluru, aged 3–18, had radiographs selected for the study. There was a record of the sex, birth date, and image data. Using deidentified orthopantomograms (OPGs), two certified examiners evaluated the dental age estimation. Both examiners concurrently analyzed and graded the stages of tooth development and eruption. Results: There is a substantial positive and statistically significant correlation (p < 0.05) between chronological age and both biological age measures. Conclusion: The association between Demirjian's age and chronological age is marginally stronger than the relationship between the ages of the London Atlas and Demirjian.

PDF Share
  1. AlQahtani S, Kawthar A, AlAraik A, et al. Third molar cut-off value in assessing the legal age of 18 in Saudi population. Forensic Sci Int 2017;272:64–67. DOI: 10.1016/j.forsciint.2017.01.004
  2. Pavlović S, Palmela Pereira C, Vargas de Sousa Santos RF. Age estimation in Portuguese population: The application of the London atlas of tooth development and eruption. Forensic Sci Int 2017;272:97–103. DOI: 10.1016/j.forsciint.2017.01.011
  3. Alshihri AM, Kruger E, Tennant M. Dental age assessment of 4-16-year-old Western Saudi children and adolescents using Demirjian's method for forensic dentistry. Egypt J Forensic Sci 2016;6(2):152–156. DOI:
  4. Patel PS, Chaudhary AR, Dudhia BB, et al. Accuracy of two dental and one skeletal age estimation methods in 6-16 year-old Gujarati children. J Forensic Dent Sci 2015;7(1):18–27. DOI: 10.4103/0975-1475.150298
  5. MK LJ, Shenoy P. Accuracy of two dental age estimation methods in 6-18-year-old children-a radiographic pilot study. IOSR-JDMS 2017;16(9):90–93. DOI: 10.9790/0853-1609069093
  6. Al-Dharrab AA, Al-Sulaimani FF, Bamashmous MS, et al. Radiographic evaluation of dental age maturity in 3-17- years-old Saudi children as an indicator of chronological age. J Orthod Sci 2017;6(2):47–53. DOI: 10.4103/jos.JOS_1_17
  7. Alshihri AM, Kruger E, Tennant M. Dental age assessment of Western Saudi children and adolescents. Saudi Dent J 2015;27(3):131–136. DOI: 10.1016/j.sdentj.2015.01.002
  8. Alshihri AM, Kruger E, Tennant M. Integrating standard methods of age estimation in western Saudi children and adolescent. Eur J Forensic Sci 2016;3(4):1. DOI: 10.5455/ejfs.201936
  9. Demirjian A, Goldstein H, Tanner JM. A new system of dental age assessment. Hum Biol 1973;45(2):211–227.
  10. Willems G, Van Olmen A, Spiessens B, et al. Dental age estimation in Belgian children: Demirjian's technique revisited. J Forensic Sci 2001;46(4):893–895.
  11. AlQahtani SJ, Hector MP, Liversidge HM. Accuracy of dental age estimation charts: Schour and Massler, Ubelaker and the London Atlas. Am J Phys Anthropol 2014;154(1):70–78. DOI: 10.1002/ajpa.22473
  12. Alassiry A, Alshomrani K, Al Hasi S, et al. Dental age assessment of 3-15-year-old Saudi children and adolescents using Demirjian's method-a radiographic study. Clin Exp Dent Res 2019;5(4):336–342. DOI: 10.1002/cre2.186
  13. Baghdadi ZD. Dental maturity in Saudi children using the Demirjian method: a comparative study and new prediction models. ISRN Dent 2013;2013:390314. DOI: 10.1155/2013/390314
  14. Dyras M, Lyszczarz J, Wójtowicz B, et al. Dental age in the relation with nutrition model of school children from swimming classes of championship school. Wiad Lek 2002;55 Suppl 1(Pt 2):662–667.
  15. McCloe D, Marion I, da Fonseca MA, et al. Age estimation of Hispanic children using the London Atlas. Forensic Sci Int 2018;288:332.e1–332.e6. DOI: 10.1016/j.forsciint.2018.04.013
  16. Karimi A, Qudeimat MA, Lucas VS, et al. Dental age estimation: development and validation of a reference data set for Kuwaiti children, adolescents, and young adults. Arch Oral Biol 2021;127:105130. DOI: 10.1016/j.archoralbio.2021.105130
  17. Harris EF, Buck AL. Tooth mineralization: a technical note on the Moorrees-Fanning-Hunt standards. Dent Anthropol J 2002;16(1):15–19. DOI: 10.26575/daj.v16i1.165
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.