Forensic Odontology 2012 Cengage Learning All Rights Reserved

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Forensic Odontology © 2012 Cengage Learning. All Rights Reserved

Forensic Odontology © 2012 Cengage Learning. All Rights Reserved

Ted Bundy 1974 - 1978 o o o 2 College women begin missing at

Ted Bundy 1974 - 1978 o o o 2 College women begin missing at the rate of about one per month. No clues until TB failed to stop for police Items in his car and apartment lead to his arrest for murdering two women. TB escapes to Florida and murders two more women, leaving bite marks on one victim. TB arrested again and brought to trial. He confessed to killing 30 women before he was executed. Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

State of Florida v. Ted Bundy

State of Florida v. Ted Bundy

Introduction o o Odontology—the study of the anatomy and growth of teeth and diseases

Introduction o o Odontology—the study of the anatomy and growth of teeth and diseases associated with the teeth and gums. Forensic Odontologist uses knowledge of the teeth to: • • • 4 Identify victims of mass disasters Help police in criminal investigations Verify signs of abuse Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Who practices Forensic Odontology and what do they do? Forensic Odontologists Must have DDS

Who practices Forensic Odontology and what do they do? Forensic Odontologists Must have DDS degree Should have specialized training in the field through lectures (not required) Forensic dentists help: Identify human remains (individual and mass) Analyze bite marks Top: Forensic Odontologist analyzing animal teeth for comparison. Side: Seal for American Board of Forensic Odontology. FROM PPT BY JESSICA WONG Bite marks are compared to known teeth molds to find origin of bite injuries Estimate age of the victim and perpetrator Trace dental malpractice

History of Forensic Odontology 66 AD – First body identified using teeth Lollia Paulina

History of Forensic Odontology 66 AD – First body identified using teeth Lollia Paulina Revolutionary War Paul Revere was the first forensic dentist in the United States because he identified fallen revolutionary soldiers. 1849 – Mass deaths at Vienna Opera House Fire Dental evidence is first admitted into court system in US FROM PPT BY JESSICA WONG

Structure & Function of Teeth 7 Forensic Science II: Forensic Odontology, Chapter 11 ©

Structure & Function of Teeth 7 Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Structure & Function of Teeth o o o 8 20 deciduous (baby) teeth 32

Structure & Function of Teeth o o o 8 20 deciduous (baby) teeth 32 permanent (adult) teeth Incisors Canines Molars Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Estimating Physical Characteristics o o 9 A forensic odontologist compares dentals records with the

Estimating Physical Characteristics o o 9 A forensic odontologist compares dentals records with the victim’s remains Dental alterations—fillings, caps, bridgework, and dentures Teeth—size, shape, gaps, cracks, alignment, missing or extra one, wears, stains Dentition—the pattern made by a particular set of teeth Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Age Estimation 10 Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning.

Age Estimation 10 Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Determining Positive Identification o Presumptive identification • • • o Positive identification • •

Determining Positive Identification o Presumptive identification • • • o Positive identification • • • 11 Personal effects Family ID Location of the body Fingerprints DNA Medical and dental records Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Dental Records o Forensic Odontologist compares • • o Especially helpful • • •

Dental Records o Forensic Odontologist compares • • o Especially helpful • • • 12 The antemortem records (take during life) The postmortem records (recorded after death) Fillings Bridgework Dental implants Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Human Bite Marks o o Bite marks look different in soft and stretchy substances

Human Bite Marks o o Bite marks look different in soft and stretchy substances like skin versus hard substances like a pencil When the bite occurs antemortem • o 13 The area bruises and swells Typical bite has a double horseshoe pattern Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Human Bite Marks o o 14 Swelling and inflammation can deform bite marks Trace

Human Bite Marks o o 14 Swelling and inflammation can deform bite marks Trace bite marks Cast deep bites Compare with impressions from a suspect Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Animal Bite Marks o o 15 Very different dentition patterns Compare DNA and bite

Animal Bite Marks o o 15 Very different dentition patterns Compare DNA and bite patterns Forensic Science II: Forensic Odontology, Chapter 11 © 2012 Cengage Learning. All Rights Reserved

Forensic Odontology 2012 Cengage Learning All Rights ReservedForensic Odontology 2012 Cengage Learning All Rights Reserved
Forensic Odontology Definition n Forensic Odontology is theForensic Odontology Definition n Forensic Odontology is the
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2012 All rights reserved 2012 All rights reserved2012 All rights reserved 2012 All rights reserved
2012 All rights reserved 2012 All rights reserved2012 All rights reserved 2012 All rights reserved
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