Evaluation of dental expertise with intra-oral peri-apical view radiographs for forensic identification

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Kanwalpreet Bhullar
Ramandeep Bhullar
Sundaresan Balagopal
Arathi Ganesh
Mathan Rajan

Abstract

Background: Identification of a dead person is important in starting the investigation into the circumstances of death. In the absence of forensic odontologist, it is vital that general dentists are able to compare the ante mortem-post mortem (AM-PM) records and with their ability, correctly interpret the individuality of the person. Aims: This study wascarried out to find out the accuracy with which undergraduate, graduate and post-graduate dentists can do this comparison, using the simulated AM-PM intra-oral peri-apical (IOPA) view radiographs. Setting and Design: A total of 60 investigators of which 20 undergraduate students, 20 general dentists, 20 post-graduate dentists viewed 10 pairs of simulated AM and PM radiographs and recorded their findings. Materials and Methods: Ten pairs of simulated AM-PM IOPA view radiographs were given to 60 dentists to investigate their discriminatory potential for dental identification purposes. The results were statistically analyzed. Statistical Analysis: χ2 -test and Mann-Whitney U-test were carried out to compare the sensitivity, specificity and accuracy of the three types of examiners (UG, G, PG). Results: The results showed sensitivity of 59.8%, specificity of 62.6%, accuracy of 61% for undergraduate students, sensitivity of 86.6%, specificity of 87.5%, accuracy of 87% for graduate doctors, sensitivity of 89.3%, specificity of 92.3% and accuracy of 90.5% for post-graduate doctors respectively. Conclusion: Inexperienced investigators in forensic identification showed fairly acceptable results, therefore, introduction of forensic odontology in an undergraduate course may help general dentists to provide better service, if required, in the absence of a forensic odontologist.

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How to Cite
Kanwalpreet Bhullar, Ramandeep Bhullar, Sundaresan Balagopal, Arathi Ganesh, & Mathan Rajan. (2014). Evaluation of dental expertise with intra-oral peri-apical view radiographs for forensic identification. Journal of Forensic Dental Sciences, 6(3), 171–176. https://doi.org/10.4103/0975-1475.137051

References

  1. Sweet D, DiZinno JA. Personal identification through dental evidence – Tooth fragments to DNA. J Calif Dent Assoc 1996;24:35-42.
  2. O’Shaughnessy PE. Introduction to forensic science. Dent Clin North Am 2001;45:217-27, vii.
  3. Pretty IA, Sweet D. A look at forensic dentistry – Part 1: The role of teeth in the determination of human identity. Br Dent J 2001;190:359-66.
  4. Soomer H, Lincoln MJ, Ranta H, Penttilä A, Leibur E. Dentists’ qualifications affect the accuracy of radiographic identification. J Forensic Sci 2003;48:1121-6.
  5. Keiser-Nielsen S. Person Identification by Means of the Teeth. Bristol: John Wright and Sons; 1980. p. 54-72.
  6. Bajaj A. Disaster victim identification: Tsunami. Br Dent J 2005;198:504-5.
  7. MacLean DF, Kogon SL, Stitt LW. Validation of dental radiographs for human identification. J Forensic Sci 1994;39:1195-200.
  8. Kogon SL, MacLean DF. Long-term validation study of bitewing dental radiographs for forensic identification. J Forensic Sci 1996;41:230-2.
  9. Borrman H, Gröndahl HG. Accuracy in establishing identity by means of intraoral radiographs. J Forensic Odontostomatol 1990;8:31-6.
  10. Ekstrom G, Johnsson T, Borrman H. Accuracy among dentists experienced in forensic odontology in establishing identity. J Forensic Odontostomatol 1993;11:45-52.
  11. Balagopal S. Verification of intra-oral periapical radiographs in forensic identification. J Forensic Odontol 2008;1: 30-2.Balagopal S. Proceedings of the 5th IAFO National Conference, Chennai, India. 20th January, 2008.
  12. Sholl SA, Moody GH. Evaluation of dental radiographic identification: An experimental study. Forensic Sci Int 2001; 115:165-9.
  13. Sweet D. Why a dentist for identification? Dent Clin North Am 2001;45:237-51.
  14. Pinchi V, Norelli GA, Caputi F, Fassina G, Pradella F, Vincenti C. Dental identification by comparison of antemortem and postmortem dental radiographs: Influence of operator qualifications and cognitive bias. Forensic Sci Int 2012;222:252-5.