Age estimation by modified Demirjian′s method (2004) and its applicability in Tibetan young adults: A digital panoramic study

Bijjaragi, Shobha; Sangle, Varsha Ajit; Saraswathi, F K; Patil, Veerendra; Rani, S R Ashwini; Bapure, Sunil K

doi:10.4103/0973-029x.157223

Cited by 13 publications

(5 citation statements)

References 17 publications

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“…A strong positive association was found between the chronological (real) age and the dental age. The results were in accordance with the literature [4,11,12]. An age estimation method can be considered efficient and effective if it has higher accuracy and precision with relatively low bias.…”

Section: Resultssupporting

confidence: 90%

Age Estimation by Modified Demirjian’s Method in a Hospital-Based Population: A Radiographic Study

Chhaparwal

Kumar

Madi

et al. 2021

Pesqui. Bras. Odontopediatria Clín. Integr.

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Objective: To test the modified Demirjian's method of dental age estimation on the South Indian population and correlate it with the patient's chronological age. Material and Methods: This retrospective radiographic study was performed on digital panoramic radiographs taken during a one-year duration. Radiographs of patients in the age range from 8 to 18 years were included in the study. The radiographs were examined and according to the stage of the crown and root status of the left side mandibular teeth. The stage of calcification was observed for eight teeth in the mandibular arch and was recorded in a specially designed proforma. Each rated tooth with stage was converted into a score using a conversion table specified for girls and boys. Results: 224 digital panoramic radiographs were retrieved from the radiologic database. Out of total study sample, 49.5% (n=111) were boys and 50.5% (n=113). The mean chronological and estimated dental age using dental maturity scores resulted in an overestimation of 3 years and eight months. Also, it was noted that there was a strong positive association between chronological (real) and dental age. Conclusion: It was observed that there was a strong correlation between chronological and dental age. A new formula for determining the chronological age from the estimated dental age was derived. Further studies on a larger population may prove the reliability of this age estimation method.

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Section: Resultssupporting

confidence: 90%

Age Estimation by Modified Demirjian’s Method in a Hospital-Based Population: A Radiographic Study

Chhaparwal

Kumar

Madi

et al. 2021

Pesqui. Bras. Odontopediatria Clín. Integr.

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Section: Discussionmentioning

confidence: 99%

“…One study found coincidence of scores between the original investigations and a study on schoolchildren in some Indian states. The Demirjian method was considered to underestimate the real age for girls and boys in Indian populations 32,33 . In Argentina, researchers from the University of Cuyo in Mendoza Province calculated dental ages in a population in the Cuyo region using Nolla and Demirjian methods, analyzing 374 panoramic scans of children and teenagers aged 5 to 17 years.…”

Section: Discussionmentioning

confidence: 99%

Use of the Demirjian method to estimate dental age in panoramic radiographs of patients treated at the Buenos Aires University School of Dentistry

Stamm¹,

Cariego²,

Vázquez³

et al. 2022

Acta Odontol Latinoam

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The aim of this study was to determine the difference between real age (RA) and dental age (DA) in boys and girls from the Autonomous City of Buenos Aires (C.A.B.A.) by analyzing digital panoramic radiographs from the database of the Imaging Department at the Buenos Aires University School of Dentistry, using the Demirjian Method (DM). The sample consisted of 508 panoramic radiographs of 6- to 14-year old Argentines (268 female and 240 male). The Demirjian method was used to estimate dental age from each panoramic radiograph, and the Wilcoxon test was applied to perform a comparative analysis with the real age recorded in the image database. Average RA was 9.36 years (SD 2.11), and average DA according to the Demirjian method was 10.45 years (SD 2.31). For females, RA was 9.25 (SD 2.12), and DA according to the DM was 10.40 years (SD 2.41). For males, RA was 9.46 (SD 2.10), and DA according to the DM was 10.50 years (SD 2.22). An inter-class correlation coefficient (ICC) calculated as a correlation measure between dental age and real age was ICC = 1.09%. The ICC was 1.04% for the males and 1.15% for females. Significant differences were found between DA and RA (p <0.01) in general and according to sex. Real age was found to be lower than dental age in the study population from Buenos Aires City.

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“…[1415] Forensic odontology plays an important role in establishing the sex of the victims with bodies mutilated beyond recognition due to major mass disasters.…”

Section: Discussionmentioning

confidence: 99%

Gender determination by radiographic analysis of mental foramen in the Maharashtra population of India

Suragimath

Ashwinirani

Christopher

et al. 2016

J Forensic Dent Sci

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Context:Identification of gender is of primary importance in forensic investigations when only fragment of skull remains. Mandible is a hard bone and exhibits a high degree of sexual dimorphism. Gender differences were observed in the height of mandible, gonial angle, bigonial breadth, bicondylar breadth, and position of mental foramen (MF).Aims of the Study:The purpose of this study is to evaluate gender differences in distances from superior border of MF (SMF) and inferior border of MF (IMF) to the lower border of mandible (LBM) and height of mandible in the Maharashtra population.Materials and Methods:A total of 400 patients (200 males and 200 females) were considered for the study. The panoramic radiographs of patients were captured using Xtropan 2000 system and Carestream (T-Mat GIRA) films. The distance from SMF and IMF to the LBM and the height of mandible was measured.Statistical Analysis Used:Unpaired t-test was applied to calculate the differences between the genders.Results:The distance from SMF and IMF to LBM and height of mandible was more in males when compared to females, which was statistically significant.Conclusion:The distances from SMF and IMF to the LBM and height of the mandible showed sexual dimorphism in the Maharashtra population of India.

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Age estimation by modified Demirjian′s method (2004) and its applicability in Tibetan young adults: A digital panoramic study

Cited by 13 publications

References 17 publications

Age Estimation by Modified Demirjian’s Method in a Hospital-Based Population: A Radiographic Study

Age Estimation by Modified Demirjian’s Method in a Hospital-Based Population: A Radiographic Study

Use of the Demirjian method to estimate dental age in panoramic radiographs of patients treated at the Buenos Aires University School of Dentistry

Gender determination by radiographic analysis of mental foramen in the Maharashtra population of India

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