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The Accuracy and Applicability of 3D Modeling and Printing Blunt Force Cranial Injuries

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The purpose of this study was to determine the factors affecting the accuracy of 3D models and 3D prints of cranial blunt force trauma, to evaluate the applicability and limitations of modeling such injuries. Three types of cranial blunt force lesions were documented (hinge, depressed, and comminuted) using three forms of surface scanning (laser, structured light scanner, and photogrammetry) at two different quality settings (standard and high). 3D printed models of the lesions were produced using two different materials (a gypsum‐like composite powder called VisiJet® PXL and an acrylic engineered composite plastic called VisiJet® M3 in crystal colour). The results of these analyzes indicate the prints in this study exhibit some statistically significant differences from the actual bone lesions, but details of the lesions can be reproduced to within 2 mm accuracy.
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Keywords: blunt head injury; forensic anthropology; forensic science; imaging‐three‐dimensional; printing‐three‐dimensional; skull fractures

Document Type: Research Article

Publication date: May 1, 2018

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