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Use of dental CBCT software for evaluation of medical CT-acquired images in a multiple fatality incident: Proof of principles.

Authors
  • Wood, Robert E1
  • Gardner, Taylor1
  • 1 Ontario Forensic Pathology Service and Office of the Chief Coroner for Ontario, Toronto, ON, Canada. , (Canada)
Type
Published Article
Journal
Journal of forensic sciences
Publication Date
Nov 02, 2020
Identifiers
DOI: 10.1111/1556-4029.14607
PMID: 33136292
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Comparison of post-mortem dental findings to ante mortem dental records is a well-established, frequently used scientific means of human identification. Dentistry has adapted a form of CT scanning that uses a cone-shaped beam and is thus termed cone beam computed tomography (CBCT). CBCT is presently being used in many aspects of dentistry including osseointegrated implant planning, orthodontics, endodontics, investigation of pathology, and assessment prior to complex dental extractions. The identification of seven individuals from multiple fatality incident was undertaken using a simple technique for completing comparative radiographic dental identifications using post-mortem medical computed tomographic (CT) image-acquisition techniques and commercially available dental software normally used in clinical care. The authors will show the means by which the harvesting of anatomically important data from medical CTs and conversion of these files was undertaken to provide crisp, clear post-mortem dental images for forensic comparison to assist in the identification of two adults and provide age stratification of three juveniles. The use of this technique has shown to be beneficial for expediting efficient identification of deceased individuals, helping to isolate which cases may need additional scientific methods of identification, saving time and money to the organization and eliminating biological/body substance or radiation exposure to the operator. The application of this software for use in forensic dental identification cases is presented, and the methodology to create post-mortem images suitable for comparison is detailed. © 2020 American Academy of Forensic Sciences.

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