Articlegold2015

Accuracy of Demirjian′s 8 teeth method for age prediction in South Indian children: A comparative study

RezwanaBegum Mohammed · Baratam Srinivas · Praveen Sanghvi · Gajjarapu Satyanarayana · Meera Gopalakrishnan · BVamsi Pavani

33 citations0/0 files storedContemporary Clinical Dentistry

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Forensic Anthropology and Bioarchaeology Studies Orthodontics and Dentofacial Orthopedics Dental Radiography and Imaging

Abstract

INTRODUCTION: Demirjian's method of tooth development is most commonly used to assess age in individuals with emerging teeth. However, its application on numerous populations has resulted in wide variations in age estimates and consequent suggestions for the method's adaptation to the local sample. Original Demirjian's method utilized seven mandibular teeth, to which recently third molar is added so that the method can be applied on a wider age group. Furthermore, the revised method developed regression formulas for assessing age. In Indians, as these formulas resulted in underestimation, India-specific regression formulas were developed recently. The purpose of this cross-sectional study was to evaluate the accuracy and applicability of original regression formulas (Chaillet and Demirjian 2004) and India-specific regression formulas (Acharya 2010) using Demirjian's 8 teeth method in South Indian children of age groups 9-20 years. METHODS: The present study consisted of 660 randomly selected subjects (330 males and 330 females) were in the aged ranging from 9 to 20 years divided into 11 groups according to their age. Demirjian's 8 teeth method was used for staging of teeth. RESULTS: Demirjian's method underestimated the dental age (DA) by 1.66 years for boys and 1.55 years for girls and 1.61 years in total. Acharya's method over estimated DA by 0.21 years for boys and 0.85 years for girls and 0.53 years in total. The absolute accuracy was better for Acharya's method compared with Demirjian method. CONCLUSION: This study concluded that both the Demirjian and Indian regression formulas were reliable in assessing age making Demirjian's 8 teeth method applicable for South Indians.

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References

1973A new system of dental age assessment.1998Dental age assessment: The applicability of Demirjian's method in South Indian children 2007Dental age assessment using Demirjian's method on northern Turkish children 2002The Accuracy and Precision of Third Molar Development as an Indicator of Chronological Age in Hispanics 2002Assessment of dental maturity of Brazilian children aged 6 to 14 years using Demirjian's method 2008Accuracy of age estimation in children using radiograph of developing teeth 2002Dental maturity as an indicator of chronological age: radiographic evaluation of dental age in 6 to 13 years children of Belgaum using Demirjian methods.2010Bias and accuracy of age estimation using developing teeth in 946 children

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2017Applicability of Demirjian’s Method and Modified Cameriere’s Methods for Dental Age Assessment in Children 2018Comprehensive Chart for Dental Age Estimation (DAEcc8) based on Demirjian 8-teeth method: Simplified for operator ease 2019Dental age estimation of Malaysian Chinese children and adolescents: Chaillet and Demirjian’s method revisited using artiﬁcial multilayer perceptron neural network 2022Dental age estimation of Malaysian Indian children and adolescents: applicability of Chaillet and Demirjian’s modified method using artificial neural network

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