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Three-Dimensional Comparative Analysis of Bitemarks

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Historically, the inability to accurately represent bitemarks and other wound patterns has limited their evidentiary value. The development of the ABFO #2 scale by Krauss and Hyzer enabled forensic odontologists to correct for most photographic plane distortions. The technique presented here uses the ABFO #2 scale in conjunction with the evolving technologies of laser scanners and comparative software commonly used by the automobile industry for three-dimensional (3D) analysis. The 3D software comparison was performed in which measurements were analyzed of the normal distance for each point on the teeth relative to the bitemarks. It created a color-mapped display of the bitemark model, with the color indicating the deviation at each point. There was a correlation between the bitemark and the original teeth.

Keywords: bitemark analysis; comparative software; forensic odontologist; forensic science; laser scanner; three dimensional

Document Type: Research Article


Affiliations: 1: 33521 Six Mile Road, Livonia, MI 48152. 2: 31632 Schoolcraft, Livonia, MI 48154. 3: 9840 Haggerty, Belleville, MI 48111.

Publication date: 2009-05-01

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