Age estimation by teeth periodontosis and transparency: accuracy of Lamendin’s method on a Brazilian sample

  • Juliana Ribeiro Lopes Universidade de São Paulo - USP
  • Simone Borges Braga dos Santos Queiroz Universidade de São Paulo - USP
  • Mário Marques Fernandes Universidade de São Paulo - USP
  • Luiz Airton Saavedra de Paiva Instituto de Medicina Legal de Guarulhos - IML
  • Rogério Nogueira de Oliveira Universidade de São Paulo - USP

Abstract

Aim: To apply the Lamendin et al. (1992) technique on a Brazilian sample to assess its accuracy on this specific population. Methods: The authors present two measurements in single-rooted teeth: the peridontosis and transparency of the root. Then, these variables are inserted in an equation to estimate the individual’s age. The sample comprised 49 teeth obtained from the collection of the Forensic Medicine Institute of Guarulhos, Brazil. Statistical analysis was performed with t and paired t tests, comparing chronological and estimated ages. Results: It was possible adjust the original formula for Brazilians by linear regression analysis: A = (P x 0.18) + (T x 0.47) + 31.77. Where, A = age; P = (periodontosis height x 100)/root height; and T = (transparency height x 100)/root height. Conclusions: The method is accurate only for young adults but it could be used with caution in individuals between 45 and 60 years of age to assist in estimating an age range. However, the technique loses its efficacy in older individuals.

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Author Biographies

Juliana Ribeiro Lopes, Universidade de São Paulo - USP
Universidade de São Paulo - USP, School of Dentistry, Department of Community Dentistry, Area of Forensic Dentistry, São Paulo, SP.
Simone Borges Braga dos Santos Queiroz, Universidade de São Paulo - USP
Universidade de São Paulo - USP, School of Dentistry, Department of Community Dentistry, Area of Forensic Dentistry, São Paulo, SP.
Mário Marques Fernandes, Universidade de São Paulo - USP
Universidade de São Paulo - USP, School of Dentistry, Department of Community Dentistry, Area of Forensic Dentistry, São Paulo, SP. Ministério Público do Rio Grande do Sul, Biomedical Service, Porto Alegre, RS.
Luiz Airton Saavedra de Paiva, Instituto de Medicina Legal de Guarulhos - IML
Instituto de Medicina Legal de Guarulhos - IML, Center for Forensic Sciences Studies and Research, Guarulhos, SP.
Rogério Nogueira de Oliveira, Universidade de São Paulo - USP
Universidade de São Paulo - USP, School of Dentistry, Department of Community Dentistry, Area of Forensic Dentistry, São Paulo, SP.
Published
2015-10-13
How to Cite
Lopes, J. R., Queiroz, S. B. B. dos S., Fernandes, M. M., Paiva, L. A. S. de, & Oliveira, R. N. de. (2015). Age estimation by teeth periodontosis and transparency: accuracy of Lamendin’s method on a Brazilian sample. Brazilian Journal of Oral Sciences, 13(1), 17-21. https://doi.org/10.20396/bjos.v13i1.8640924
Section
Article