Comparison of age estimation between 15_25 years using a modified form of Demirjian's ten stage method and two teeth regression formula

1st Physics and Technologies in Medicine and Dentistry Symposium

物理学;医药卫生

Amiroh^1 ; Priaminiarti, M.^1 ; Syahraini, S.I.^1

Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia^1

关键词: Age estimation;    Cohen's kappas;    Development stages;    Panoramic radiograph;    Regression formulas;    Victim identifications;    Wilcoxon test;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/884/1/012070/pdf
DOI  :  10.1088/1742-6596/884/1/012070

学科分类：卫生学

来源: IOP

【 摘 要 】

Age estimation of individuals, both dead and living, is important for victim identification and legal certainty. The Demirjian method uses the third molar for age estimation of individuals above 15 years old. The aim is to compare age estimation between 15-25 years using two Demirjian methods. Development stage of third molars in panoramic radiographs of 50 male and female samples were assessed by two observers using Demirjian's ten stages and two teeth regression formula. Reliability was calculated using Cohen's kappa coefficient and the significance of the observations was obtained from Wilcoxon tests. Deviations of age estimation were calculated using various methods. The deviation of age estimation with the two teeth regression formula was ±1.090 years; with ten stages, it was ±1.191 years. The deviation of age estimation using the two teeth regression formula was less than with the ten stages method. The age estimations using the two teeth regression formula or the ten stages method are significantly different until the age of 25, but they can be applied up to the age of 22.