Assessment of the accuracy of 3D printed teeth by various 3D printers in forensic odontology

Abraham Johnson, Gargi Jani, Rachael Carew, Astha Pandey

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
105 Downloads (Pure)

Abstract

Additive manufacturing technology has benefited many sectors, and its use in forensic sciences has opened up a variety of new opportunities for analysing and exhibiting forensic materials. However, to perform analytical procedures on 3D printed bones and teeth in forensic odontology, the metric and morphological precision of the printed replicas must first be validated. To address this, the present study was undertaken using 12 extracted human teeth that were 3D printed using five different techniques. Manual measurements and a digital mesh comparison were used to evaluate the metric precision of all samples. The findings showed that the printed replicas were accurate to within 0.5 mm of the actual teeth. It was suggested that Digital Light Processing (DLP) prints be used for potential forensic odontology applications based on measurements, digital comparison, and ease of use.

Original languageEnglish
Article number111044
Number of pages8
JournalForensic Science International
Volume328
Early online date5 Oct 2021
DOIs
Publication statusPublished - Nov 2021
Externally publishedYes

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Forensic Science International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forensic Science International, 328, (2021) DOI: 10.1016/j.forsciint.2021.111044
© 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • 3D printing
  • 3D scanning
  • Forensic science
  • Forensic odontology
  • Metric analysis
  • Digital analysis

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