Comparative estimation of dental age by using Demirjian’s and Nolla’s method in residents of Pune city
Abstract
Introduction – Age assessment is an essential part of forensic odontology. It is of importance in medico-legal areas and in mass disasters. Age estimation methods show variation in the reported results. Aim and Objectives - To evaluate and compare the dental age from orthopantomogram using Demirjian’s and Nolla’s method in residents of Pune city and to compare the dental age with the chronological age. Methodology - The study was carried out in the Department of Oral and Maxillofacial Pathology and Oral Microbiology, Bharati Vidyapeeth Deemed to be University, Dental College and Hospital, Pune. A total of 100 subjects were enrolled in the study. The diagnostic orthopantomograms (OPGs) were evaluated as per the Demirjian’s and Nolla’s method. Statistical methods - The pair-wise statistical comparison of distribution of means of continuous variables was tested using paired t-test. Results – The results of our study suggest that the Demirjian’s method is applicable to higher age groups in both genders with a better accuracy than Nolla’s method. Nolla’s method has a better accuracy in the lower age group than the Demirjian’s method.
References
2. Rudraswamy S, Doggalli N, Chandrashekar B R, Manjunath M, Sreeshyla H S. Forensic odontology acquaintance among the students of a dental institution in Mysore City, India. Int J Forensic Odontol 2017;2:13-7
3. Verma M, Verma N, Sharma R, Sharma A. Dental age estimation methods in adult dentitions: An overview. J Forensic Dent Sci 2019;11:57-63
4. Chaudhary RK, Doggalli N. Commonly used different dental age estimation methods in children and adolescents. Int J Forensic Odontol 2018;3:50
5. Shamim T, Varghese IV, Shameena PM, Sudha S. Age estimation: A dental approach. J Punjab Acad Forensic Med Toxicol 2006;6:14-16
6. Seth J, Agarwal A, Aeran H, Krishnan Y. Dental age estimation in children and adolescents. Indian J Dent Sci 2018;10:248-51
7. Karaarslan B, Karaarslan ES, Ozsevik AS, Ertas E. Age estimation for dental patients using orthopantomographs. Eur J Dent. 2010;4(4):389-394.
8. Rath H, Rath R, Mahapatra S, Debta T. Assessment of Demirjian's 8-teeth technique of age estimation and Indian-specific formulas in an East Indian population: A cross-sectional study. J Forensic Dent Sci 2017;9:45
9. Nandlal B, Patil K, Shankar R. Estimation of dental age by Nolla’s method using orthopantomographs among rural free residential school children Int J Med Res Health Sci. 2014;3(2):273-277
10. El-Yazeed MA, Zeid WA, Tawfik W. Dental maturation assessment by Nolla’s technique on a group of Egyptian children. Aust J Basic Appl Sci 2008;2: 1418-24.
11. 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;26:279-86
12. Khanal S, Acharya J, Shah P. Dental age estimation by Demirjian’s and Nolla’s method in children of Jorpati, Kathmandu. Journal of College of Medical Sciences- Nepal, Vol 14, No 3, Jul-Sep 2018
13. Savita JK, Kumar BNY, Mamatha NS. Teeth as age estimation tool in children and adolescents. J Med Radiol Pathol Surg 2017;4:12-15.
14. Manjunatha BS, Soni NK. Estimation of age from development and eruption of teeth. J Forensic Dent Sci 2014;6:73-6
15. Hegde RJ, Khare SS, Saraf TA, Trivedi S, Naidu S. Evaluation of the accuracy of Demirjian method for estimation of dental age among 6-12 years of children in Navi Mumbai: A radiographic study. J Indian Soc Pedod Prev Dent 2015;33:319-23
16. Panchbhai AS. Dental radiographic indicators, a key to age estimation. Dentomaxillofac Radiol. 2011;40(4):199–212. doi:10.1259/dmfr/19478385
17. Moness Ali, A.M., Ahmed, W.H. & Khattab, N.M. Applicability of Demirjian’s method for dental age estimation in a group of Egyptian children. BDJ Open 5, 2 (2019). https://doi.org/10.1038/s41405-019-0015-y
18. Chandramohan P, Puranik MP, Uma S R. Demirjian method of age estimation using correction factor among Indian children: A retrospective survey. J Indian Assoc Public Health Dent 2018;16:72-4
19. Thomas D, Shenai P, Chatra L, M Vk, Rao P, Prabhu R, Sk A, Shetty P. Age assessment using Nolla’s method in a group of manglore population: A study on 25 children. J Contemp Med. 2014;4:121-127. DOI: 10.16899/ctd.32466
20. Tomás, L.F., Mónico, L.S., Tomás, I. et al. The accuracy of estimating chronological age from Demirjian and Nolla methods in a Portuguese and Spanish sample. BMC Oral Health 14, 160 (2014). https://doi.org/10.1186/1472-6831-14-160
21. Koshy S, Tandon S. Dental age assessment: the applicability of Demirjian's method in south Indian children. Forensic Science International. 1998 Jun; 94(1-2):73-85. DOI: 10.1016/s0379-0738(98)00034-6.
22. Rai B, Anand SC Tooth development: An accuracy of age estimation of radiographic methods. World J Med Sci 2006;1:130-132
