Reliability of Demirjian's and Willems method in Estimating Dental Age in Puducherry and Cuddalore Population, South India
DOI:
https://doi.org/10.48165/jiafm.2023.45.4.16Keywords:
Chronological age, Demirjian's method, Dental age, Forensic odontology, Willems method.Abstract
Age estimation plays an important role in the field of forensic sciences. The Dental age estimation methods were different in different populations. This study aimed to evaluate the accuracy of determining the dental age by Demirjian methods and Willems method and comparing it with chronological age estimation. The study comprised 660 Digital Panoramic radiographs of which 228 were male and 373 were female with the age ranged from 6 to 17 years. The OPGs were used as samples to evaluate the accuracy of Demirjian's 7 teeth 1976 method, Demirjian's 8 teeth 2004 method, and Willem's method in estimating the dental age. Three different dental ages were obtained and a comparison with the chronological age of the patient was performed. The best method was evaluated by Descriptive statistics and Pearson Correlation Coefficient. The results found that Demirjian's 7 teeth 1976 method overestimated the Chronological age by 2.12 years, Willems method overestimated it by 0.59 years and Demirjian's 8 teeth method underestimated the chronological age by 0.25 years. Pearson Correlation Coefficient analysis revealed that Demirjian's 8 teeth 2004 is the most accurate method employed in dental age estimation. This study concludes by stating that the accuracy and reliability of dental age estimation and the interrelationship between the chronological age and dental age in Tamil Nadu and Puducherry population is best with Demirjian's 8 teeth method and Willems method, while Demirjian's 7 teeth method has failed to estimate the dental age in this population.
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References
Nayak SD, George R, Shenoy A. Age Estimation in Forensic Dentistry-AReview. Int J Sci Res. 2014 Apr; 3(4).
Nuzzolese E, Di Vella G. Legal background of age estimation for the dead and the living. Age Estimation: A Multidisciplinary Approach. IRIS 2019 Jan 1.p.17- 25.
Kumar VJ, Gopal KS. Reliability of age estimation using Demirjian's 8 teeth method and India specific formula. J Forensic Dent. Sci 2011 Jan; 3(1): 19-22.
Esan TA, Yengopal V, Schepartz LA. The Demirjian versus the Willems method for dental age estimation in different populations: Ameta-analysis of published studies. PloS one. 2017; 12(11); 1- 23.
Eid RM, Simi R, Friggi MN, Fisberg M. Assessment of dental maturity of Brazilian children aged 6 to 14 years using Demirjian's method. Int J Paediatric Dent. 2002 Nov; 12(6):
Priyanka M, Kiran G, Poornima R, Shravani R, Shobhita KC, Preethi P. Age Estimation by Modified Demirjian's Method in Children and Adolescents of Hyderabad Population—A Panoramic Study. J Orofac Sci. 2018 Jul 1; 10(2): 63- 8.
Sinha S, Umapathy D, Shashikanth MC, Misra N, Mehra A, Singh AK. Dental age estimation by Demirjian's and Nolla's method: A comparative study among children attending a dental college in Lucknow (UP). J Indian Acad Oral Med Radiol 2014 Jul 1; 26(3): 279- 286.
Jurca A, Lazar L, Pacurar M, Bica C, Chibelean M, Bud E. Dental Age Assessment Using Demirjian's Method-A Radiographic Study. European Scientific Journal. 2014 Dec 1; 10(36).
Sobieska E, Fester A, Nieborak M, Zadurska M. Assessment of the Dental Age of Children in the Polish Population with
Comparison of the Demirjian and the Willems Methods. Medical Science Monitor: International Medical Journal of Experimental and Clinical Research. 2018; 24: 8315- 8321.
Koshy S, Tandon S. Dental age assessment: the applicability of Demirjian's method in south Indian children. Forensic Sci Int. 1998 Jun 8; 94(1-2): 73-85.
Asab SA, Noor SN, Khamis MF. The accuracy of Demirjian method in dental age estimation of Malay children. Singapore Dent J. 2011 Jan 1; 32(1): 19-27.
Bunyarit SS, Jayaraman J, Naidu MK, Yuen Ying RP, Nambiar P, Asif MK. Dental age estimation of Malaysian Chinese children and adolescents: Chaillet and Demirjian's method revisited using artificial multilayer perceptron neural network. Aust J Forensic Sci.2019 Feb 28:1-8.
Agrawal NK, Hackman L, Dahal S. Dental Age Assessment using Demirjian's Eight Teeth Method and Willems Method in a Tertiary Hospital. JNMA; J Nepal Med. Assoc2018 Nov 1; 56(214): 912-6.
Mankel H, Ghosh A. Dental age estimation using Demirjian's 7 teeth and 8 teeth method applying in Rajasthan (Kota) population. EPH-Int J Med and Health Sci. 2018 Jun 30; 4(6): 38- 45.
Bijjaragi SC, Sangle VA, Saraswathi FK, Patil VS, Rani SA, Bapure SK. Age estimation by modified Demirjian's method (2004) and its applicability in Tibetan young adults: Adigital panoramic study. Journal of oral and maxillofacial
pathology: JOMFP. 2015 Jan; 19(1): 100- 5.
Kiran CS, Reddy RS, Ramesh T, Madhavi NS, Ramya K. Radiographic evaluation of dental age using Demirjian's
eight-teeth method and its comparison with Indian formulas in South Indian population. J Forensic Dent Sci. 2015 Jan; 7(1): 44- 48.
Wang J, Ji F, Zhai Y, Park H, Tao J. Is Willems method universal for age estimation: A systematic review and meta analysis. J Forensic Leg Med. 2017 Nov 1; 52: 130-6.
Mani SA, Naing LI, John J, Samsudin AR. Comparison of two methods of dental age estimation in 7–15 year old Malays. Int J Paediatric Dent. 2008 Sep; 18(5): 380-8.
Ramanan N, Thevissen P, Fieuws S, Willems G. Dental age estimation in Japanese individuals combining permanent teeth and third molars. J Forensic odonto-stomatol. 2012 Dec; 30(2): 34-39.
Djukic K, Zelic K, Milenkovic P, Nedeljkovic N, Djuric M. Dental age assessment validity of radiographic methods on Serbian children population. Forensic Sci Int. 2013 Sep 10; 231(1-3): 398-e1.
Khoja A, Fida M, Shaikh A. Validity of different dental age estimation methods in Pakistani orthodontic patients. Aust J Forensic Sci. 2015 Jul 3; 47(3): 283-92.
Ozveren N, Serindere G, Meric P, Cameriere R. A comparison of the accuracy of Willems' and Cameriere's methods based on panoramic radiography. Forensic Sci Int. 2019 Sep 1; 302: 109912.
Balla SB, Baghirath PV, Vinay BH, Kumar JV, Babu DG. Accuracy of methods of age estimation in predicting dental age of preadolescents in South Indian children. J Forensic Legal Med. 2016 Oct 1; 43:21-5.
