Third Molar Development Reliability for Radiographic Age Estimation (Demirjian's Method)

Authors

  • Marvi Shaikh, Syeda Sadia Hassan, Sana Shah, Neelam Memon, Alvina Ali Shaikh, Hassan Shahid

DOI:

https://doi.org/10.53350/pjmhs221651195

Keywords:

chronological age, dental maturity, panoramic, radiographs, third molar,

Abstract

Background: The determination of age after a person has died is a potential stage in the postmortem profiling process that leads to definitive identification. Demirjian's method, designed for use with children, establishes maturity scores as a function of age using eight developmental stages and polynomial functions to estimate age as a function of the score.

Aim: This study's purpose was to examine the accuracy of age estimate by employing Demirjian's eight teeth approach following French maturity scores & an Indian-specific formula generated from third molar growth phases by use of orthopantomograms.

Materials and Methods: 30 participants, each with a known chronological age and gender, had dental panoramic tomograms taken, which were then assessed using Demirjian's standards. The Indian method and the Demirjian formula were used to calculate ages. The P values obtained from the statistical analysis, which included the Chi-square test and the ANOVA test, were statistically significant.

Results: Both Indian and Demirjian's formulations had an average underestimate of age. Since the Indian method had a reduced mean absolute error, it may be used to estimate ages Additionally, females complete dental development sooner than boys do since they were faster to reach dental maturity.

Conclusion: If population-specific formulae are developed using regression analysis and ethnic and environmental variance is taken into account, more accuracy may be attained.

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How to Cite

Marvi Shaikh, Syeda Sadia Hassan, Sana Shah, Neelam Memon, Alvina Ali Shaikh, Hassan Shahid. (2022). Third Molar Development Reliability for Radiographic Age Estimation (Demirjian’s Method). Pakistan Journal of Medical & Health Sciences, 16(05), 1195. https://doi.org/10.53350/pjmhs221651195