like fingerprints are unique forensic odontologist will make a cast or take pictures of the bite marks Types of Bites A clear impression means that there was ID: 689275
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Slide1Slide2
Individual Evidence
Bite marks
, like fingerprints,
are unique
forensic odontologist will make a cast or take pictures of the bite marks Slide3
Types of Bites
A
clear
impression means that there was
significant pressure; obvious bite signifies medium pressure noticeable impression means that the biter used violent pressure to bite down.Slide4
Clear
, obvious
,
noticeable
Slide5Slide6
Individual and Class Characteristics
A human bite mark will
be elliptical or circular andwill display the specific characteristics of the teeth List 5 class characteristicsSlide7
Food
can be evidence
Comparing the
Bite patterns on foodSlide8
MeasurementsSlide9
Matching mold to bite markSlide10
Analysis of Bite MarkSlide11
Class Characteristics
Shape of
arch
Tooth alignment thicknesswidth spacingMissing teethOther unique featuresSlide12
Terminology
Positive identification-exact match
Possible identification-consistencies exist, but not enough to make an exact match
Insufficient evidence-not enough evidence
Exclusion-does NOT matchSlide13
1 – Fold the Styrofoam plate in half.
2 – Label one side MAXILLA and the other MANDIBLE.
3 – Gently bite down on the plate to leave your bite mark impression.
4 – Place a sheet of the plastic film over the impression and use a permanent marker to recreate the pattern to match that of your bite mark.
5 – Use a ruler to make the measurements shown and record in the table below along with any notes regarding unique characteristics you observe in the teeth.
Part 1: Make an Impression
Width
Depth
http://forensicfact.files.wordpress.com/2008/05/cast_negative_resized_copy.jpg
Maxilla
Mandible
Maxilla
Mandible