are unique and a forensic dentist will be able to make a cast or take pictures of the bite marks Forensic dentists use several different terms to describe the type of bite mark Abrasion a scrape on the skin ID: 775315
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Slide1
Slide2Individual Evidence
Bite marks, like fingerprints, are unique and a forensic dentist will be able to make a cast or take pictures of the bite marks
Slide3Forensic dentists use several different terms to describe the type of bite mark:
Abrasion
- a scrape on the skin
Artifact
- when a
piece
of the body, such as an ear lobe,
is removed
through biting
Avulsion
- a bite resulting in the
removal of skin
Contusion
- a bruise
Hemorrhage
- a profusely
bleeding
bite
Incision
- a clean,
neat wound
Laceration
- a puncture wound
Slide4Types 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.
Slide5Clear, obvious, noticeable
Slide6Slide7Characteristics
A human bite mark will often be elliptical or circular and will display the specific characteristics of the teeth
Slide8Food can be evidence
Comparing the Bite patterns on food
Slide9Measurements
Slide10Matching mold to bite mark
Slide11Analysis of Bite Mark
Slide12Class Characteristics
Shape of the mouth arch
Tooth alignment,
thickness,width
and spacing
Missing teeth
Other unique features
Slide13Terminology
Positive identification-exact match
Possible identification-consistencies exist, but not enough to make an exact match
Insufficient evidence-not enough evidence
Exclusion-do NOT match
Slide14Becoming a Forensic Dentist
In the United States, many forensic dentists are certified by the American Board of Forensic Odontology. There is a long list of qualifications to obtain this certification, including:
Complete coursework at an approved school such as the Armed Forces Institute of Pathology or the School of Dentistry at the University of Texas at San Antonio
Be present and participate in meetings of national organizations related to forensics or forensic dentistry
Work with a coroner, medical examiner's office or law enforcement for at least two years
Work on at least 25 forensic dental cases, including 15 positive identification cases and two bite-mark cases
Slide151 – 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
Slide16