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Methods for the Analysis of Human Bite Marks.

A S Naru¹

¹Whitehall Group, Gateshead, Tyne and Wear, UK.

Forensic Science Review

|August 14, 2015

Summary

This summary is machine-generated.

Bite mark analysis in criminal investigations is unreliable for positive identification. Current methods cannot accurately represent dental details in tissue, limiting its use to excluding suspects only.

Keywords:

Bite marks bite mark analysis bite mark comparison dentition forensic mark odontology teeth

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Area of Science:

Forensic Odontology
Legal Medicine
Criminalistics

Background:

Bite mark analysis is used in criminal investigations to compare dental features with injuries.
Bite marks are complex skin injuries resulting from teeth, requiring interpretation by investigators.
No standardized methods exist for collecting or comparing bite mark evidence.

Purpose of the Study:

To review the literature on bite mark analysis and determine the evidentiary value of this technique.
To assess the reliability and limitations of bite mark comparison in forensic investigations.

Main Methods:

Literature review of existing studies on bite mark analysis.
Examination of factors affecting bite mark quality, including tissue distortion and shrinkage.
Analysis of common comparison methods using dental templates.

Main Results:

Classifications and investigations into bite strength/sucking forces have been inconclusive.
Accuracy and reproducibility of representing dentition through tissue pathology are insufficient.
No established methods exist to quantify or correct tissue distortions in bite marks.
Human dentition individuality and minimum correspondence levels for identification are not agreed upon.

Conclusions:

Bite mark comparison is limited to excluding suspects due to inherent inaccuracies.
The technique should not be used for positive identification of an assailant.
Investigators must consider self-inflicted marks and other injuries that mimic bite marks.