Presentation on theme: "FORENSIC ODONTOLOGY Dentistry in Forensics. How can teeth help investigators? Identify a suspect by comparing bite mark evidence to the suspect’s teeth."— Presentation transcript:
FORENSIC ODONTOLOGY Dentistry in Forensics
How can teeth help investigators? Identify a suspect by comparing bite mark evidence to the suspect’s teeth. Identify a victim by comparing the teeth to the dental records of known missing people.
BITE MARK EVIDENCE 1.Photograph the area with a ruler near the injury (in color and B&W). 2.Area is swabbed for traces of saliva (may contain DNA) 3.Area is swabbed for microorganisms 4.Impressions of the bite mark are made.
Photographing the injury
We have a suspect, now what? 1.Get the suspect’s permission for a body search. 2.Take saliva samples. 3.Photograph the teeth with a ruler in place for comparison. 4.Impressions are made of the teeth.
Serial Killer Ted Bundy Impressions being made of Bundy’s teeth.
Development of a child’s teeth can help estimate the age of a young victim.
Dental Chart for humans
The dark markings identify specific characteristics. Fillings, caps, chips, evidence of dental work
Vet’s Dental Chart: Animal Bites
Bite mark on a body
Comparison of chimpanzee, A. afarensis, and human dentition
What Else can be Learned from Teeth?
Dental Erosion- vomiting too much
STAINING #1- from specific antibiotic use when teeth were developing
STAINING #2- from smoking
WORN TEETH #1- pipe smoker
WORN TEETH #2- electrician (stripping wires with teeth)
COUNTRY OF ORIGIN different dental practices
TEETH: Note size and shape
Teeth are important in Forensics! The End
References ges/bundy1.jpghttp://www.forensicdentalscience.com/ima ges/bundy1.jpg James, Stuart H. and Nordby, Jon J. Forensic Science: An Introduction to Scientific and Investigative Techniques. CRC Press; Boca Raton, Other Google images