Use of the Chronological Dental Mineralization Table of Nicodemo, Moraes and Medici Filho (1974) to Estimate Age by Undergraduate Dentistry Students

Raphael Cavalcante Costa, Johnys Berton Medeiros da Nóbrega, Eugênia Lívia de Andrade Dantas, Isabella Lima Arrais Ribeiro, Laíse Nascimento Correia Lima, Patrícia Moreira Rabello, Ana Maria Gondim Valença, Bianca Marques Santiago


Objective: To evaluate the agreement and applicability of the Chronological Dental Mineralization Table of Nicodemo, Moraes and Medici Filho (1974) to estimate age held by undergraduate Dentistry students at the Federal University of Paraíba. Material and Methods: Field research applied with a sample of 50 students according to inclusion and exclusion criteria. Sequentially, 3 panoramic radiographs were exposed (actual age known only by teachers), and students were instructed to interpret them from the selection of 2-4 teeth under formation. Data were analyzed using SPSS software (Statistical Package for Social Sciences), version 20.0, adopting significance level of 5%. Results: Most students chose 3 teeth, with percentages of 56.0% (n = 28); 38.0% (n = 19) and 58.0% (n = 29) for radiographs 1, 2 and 3, respectively. Teeth selected with greater frequency were: 47 (20.1%, n = 33) and 45 (19.5%, n = 32) - radiography 1; 38 (22.7%, n = 32) and 18 (13.4%, n = 19) - radiography 2; and 47 (17.9%; n = 26) and 36 (13.7%; n = 20) - radiography 3. The agreement between estimated and actual ages was 60.0% for radiography 1, 12.0% for radiography 2 and 32.0% for radiography 3. Age was underestimated in 40.0% (n = 20) and 88.0% (n = 44) in radiographs 1 and 2, respectively. Overestimation of the actual age occurred only in radiography 3 (68.0%; n = 34). The linear regression analysis revealed that it is possible to estimate the actual age from the maximum age stipulated by training students with 88.1% success rate. Conclusion: The method is applicable; however, the correlation between estimated and actual ages varied considerably among radiographs, and maximum estimated values were closer to the actual age than minimum values.


Forensic Dentistry; Panoramic Radiography; Age Determination by Teeth

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Corlett IA, Lins RBE, Santos EJL, Santiago BM. [Students in Dentistry and his first contact with the estimation of dental age : a pilot study]. Rev Bras Odonto Legal 2015, 2(1):1-18.

Olze A, Pynn BR, Kraul V, Schulz R, Heinecke A, Pfeiffer H, Schmeling A. Studies on the chronology of third molar mineralization in First Nations people of Canada. Int J Legal Med 2010;124(1):433-7.

Costa J, Monterob J, Serranob S, Albaladejob A, López-Valverdeb A, Bica I. Accuracy in the legal age estimation according to the third molars mineralization among Mexicans and Columbians. Aten Primaria. 2014, 46(1):165-75.

Thevissen PW, Fieuws S, Willems G. Third molar development: evaluation of nine tooth development registration techniques for age estimations. J Forensic Sci 2013, 58(2):393-7.

Zelic K, Galic I, Nedeljkovic N, Milosevic O, Djuric M, Cameriere R. Accuracy of Cameriere’s third molar maturity index in assessing legal adulthood on Serbian population. Forensic Science International 2016, 256(1): 127-32.

Santoro V, De Donno A, Marrone M, Campobasso CP, Introna F. Forensic age estimation of living individuals: A retrospective analysis. Forensic Sci Int 2009; 193(1):129.e1-e4.

Coutinho CGV, Ferreira CA, Queiroz LR, Gomes LO, Silva UA. [The role of the forensic dentist in criminal skills]. Rev Faculd Odont 2013, 18(2):217-23.

Nicodemo RA. [Contribution to the study of the chronology of mineralization of third molars, the radiographic method in Caucasian Brazilians residing in the Parnaíba Valley, State of São Paulo]. Thesis. Odontologia Legal. Faculdade de Odontologia, UNESP, São José dos Campos,1967.

Moraes MEL, Médici Filho E, Moraes LC. [Pubertal growth spurt. Relationship between dental mineralization, chronological age, dental age and bone age - Radiographic method] Rev Odont UNESP 1998; 27(1):111-29.

Médici Filho E. [Mineralization chronology of canines, premolars and second molars between Brazilian caucasian]. Rev Faculd Odont São José dos Campos 1974; 3(1):57-64.

Moreno MB; Pontes TJP, Rabello PM. [Using the table chronology of dental mineralization Nicodemo, Moraes and Medici Son in estimating the age of Paraiba]. Saúde, Ética & Justiça 2014; 19(1):35-44.

Nicodemo RA, Moraes LC, Médici Filho E. [Chronological table of mineralization of permanent teeth under the aspect of the difference between the sexes]. Rev Faculd Odont São José dos Campos1974; 3(1):55-6.

Silva M. Compêndio de odontologia legal. Rio de Janeiro: Médica e Científica, 1997.

Lakatos EM, Marconi MA. Metodologia científica. 5. ed. São Paulo: Atlas, 2007.

Brasil. Lei n. 8.069, de 13 de julho de 1990. Dispõe sobre o Estatuto da Criança e do Adolescente e dá outras providências. [Accessed on 12 Dec. 2015]. Available at:

Carneiro APC, Guimarães JATL, Ikeda e Silva RM, Santiago APCS, Laureano-Filho JR. Chronological table of third molar mineralization in a survey in the state of Alagoas, Brazil. Braz J Oral Sci 2010; 9(4):489-92.

Deitos AR, Costa C, Michel-Crosato E, Gali I, Cameriere R, Biazevic MGH. Age estimation among Brazilians: Younger or older than 18? J Forensic Leg Med 2015, 33(1):111-15.

Panchbhai AS. Dental radiographic indicators, a key to age estimation. Dentomaxillofac Radiol 2011; 40(1):199-212.

Lopes JR, Oliveira RN. [Age estimation methods by the teeth from the perspective of evidence-based dentistry]. Rev Pós Grad 2011; 18(3):170-5.

Harris EF, Buck AL. Tooth mineralization: A technical note on the moorrees-fanning-hunt standards. Dent Anthropol 2002; 16(1):15-20.

Kurita LM, Menezes AV, Casa-Nova MS, Haiter-Neto F. Dental maturity as an indicator of chronological age: radiographic assessment of dental age in a Brazilian population. J Appl Oral Sci 2007; 15(2):99-104.

Tuteja M, Bahirwari S, Balaji P. An evaluation of third molar eruption for assessment of chronologic age: A panoramic study. J Forensic Dent Sci 2012,4(1):13-8.

Prieto G, Muniz J. Un modelo para evaluar la calidad de los tests utilizados em España. [Accessed on 12 Dec. 2015]. Available at: .

Rai B. The evaluation of two radiographic methods for age determination of children in an Indian population. J Forensic Odontostomat 2008; 26(2):30-3.

Thevissen PW, Algerban A, Asaumi J, Kahveci F, Kaur J, Kim YK, Pittayapat P, Van-Vlierberghe M, Zhang Y, Fieuws S, Willems G. Human dental age estimation using third molar developmental stages: Accuracy of age predictions not using country specific information. Forensic Sci Int 2010; 201(1-3):106-11.

Gonçalves ACS, Antunes JLF. [Age estimation in children based on mineralization stages of permanent teeth with forensic dental purpose]. Rev Odontol Sociedade 1999; 1(1/2):55-62.

Cornélio-Neto WL. [Estimated age for tooth mineralization of thirds molars through panoramic radiographs]. Dissertation. Dentistry. Faculdade de Odontologia, UNICAMP, Piracicaba, 2000.

Silva RF, Daruge-Júnior E, Pereira SDR, Almeida SM, Oliveira RN. [Corpse identification using dental records carbonized]. J Dent Sci 2008; 23(1):90-93.

Meléndez BVDC. [The profile of forensic dentistry education in Latin America]. Dissertation. Foresensic Dentistry. Faculdade de Odontologia, UNICAMP, Piracicaba, 2003.

Madadin M, Al-Saif DM, Khamis AH, Kharoshah MA, Alsayyah A, Alfehaid S, Yaghmour K, Hakami AY, Bamousa MS, Menezes RG, Almadani OM. Undergraduate teaching of forensic medicine in Saudi Arabia. Med Sci Law 2016; 56(3):163-6.