Forensic Odontology Overview

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Questions and Answers

What is the significance of dental records in forensic odontology?

  • They can confirm the cause of death without additional evidence.
  • They must comply with legal requirements and can support probable identification. (correct)
  • They serve as the sole means of identifying human remains.
  • They are not necessary for presumptive identification.

Which scenario would lead to exclusion of identification in forensic odontology?

  • Presence of consistent dental records.
  • Clearly inconsistent evidence from dental records. (correct)
  • Sufficient information from both antemortem and postmortem sources.
  • Insufficient evidence from other forensic methods.

What kind of information is typically compared during the identification of human remains?

  • Antemortem and postmortem dental information. (correct)
  • Circumstantial evidence related to the crime scene.
  • Anthropometric measurements and shoe size.
  • DNA samples from hair and nails.

What is categorized as presumption in identification?

<p>Adequate information, though possibly incomplete. (B)</p> Signup and view all the answers

Which of the following is NOT a responsibility of a forensic dentist?

<p>Detailed investigation of fingerprints. (D)</p> Signup and view all the answers

What can be determined from the cells of the pulp cavity in forensic odontology?

<p>The person's blood group and sex. (D)</p> Signup and view all the answers

In what situation is the identification of human remains crucial for criminal investigations?

<p>Before proceeding with funeral arrangements. (C)</p> Signup and view all the answers

Why can teeth be useful in estimating the age of an individual?

<p>They show patterns of wear and development over time. (A)</p> Signup and view all the answers

What characterizes a spastic gait?

<p>Legs are held together and move forward with short steps. (B)</p> Signup and view all the answers

Which gait resembles that of a duck?

<p>Wadding gait (A)</p> Signup and view all the answers

How does a paratic gait primarily present?

<p>Feet and legs are held wide apart moving forward with short steps. (B)</p> Signup and view all the answers

Which type of gait is characterized by high foot elevation followed by a sudden drop?

<p>Ataxic gait (C)</p> Signup and view all the answers

What distinguishes a cow's gait?

<p>Knock knees resulting in a specific walking manner. (C)</p> Signup and view all the answers

What is the primary basis for dental identification?

<p>The unique totality of teeth characteristics (A)</p> Signup and view all the answers

Which of the following statements is true about fingerprints compared to teeth?

<p>Teeth are resistant to damage from fire, but fingerprints can be destroyed. (C)</p> Signup and view all the answers

Which factor does NOT pose a problem for dental identification?

<p>Presence of dental restorations (B)</p> Signup and view all the answers

In the context of dental identification, what does the term 'putrefaction' refer to?

<p>The decomposition of a body that affects dental records (B)</p> Signup and view all the answers

Why is identification based on physical characteristics recalled by friends and relatives considered unreliable?

<p>All of the above. (D)</p> Signup and view all the answers

What is a significant limitation when it comes to storing dental records?

<p>Records are only kept for a limited duration (A)</p> Signup and view all the answers

How does fire impact dental identification?

<p>Restorations and teeth can undergo irreversible changes. (A)</p> Signup and view all the answers

What aspect of walking can complicate gait analysis?

<p>Gait may change due to accidents or intentional design. (C)</p> Signup and view all the answers

Flashcards

Forensic Odontology

The process of identifying an individual by comparing their dental records with records of missing persons.

Probable Identification

The level of certainty in the identification of an individual based on dental records.

Presumptive Identification

The level of certainty in identification when there is less evidence available and some information may be missing.

Exclusion of Identification

An identification based on dental evidence that is inconsistent with other data and cannot be used to definitively identify the individual.

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Bite Marks

Marks left by human teeth on an object or tissue.

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Age Estimation

The use of dental records to determine the age of an individual.

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Sex Determination

The use of dental records to determine the sex of an individual.

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Bite Mark Analysis

Analyzing bite marks left on food or human tissue to potentially identify a suspect.

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Ataxic gait

A walking pattern where the feet are lifted high and then dropped abruptly, often seen in conditions affecting balance and coordination.

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Cerebellar gait

A swaying and unsteady gait, similar to someone intoxicated, often linked to cerebellar problems affecting balance.

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Cow's gait

A gait caused by knock-knees, making the legs appear to move like a cow's.

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Paratic gait

A gait with feet wide apart and short steps, with minimal knee and foot bending, often seen in muscle weakness or neurological conditions.

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Spastic gait

A stiff and robotic gait with short steps and minimal bending of the knees and feet, often caused by muscle spasticity.

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Uniqueness of Teeth

Teeth are unique to each individual, making them valuable for identification.

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Teeth: Durable Evidence

Teeth are relatively resistant to decomposition and fire, making them useful even after death.

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Dental Identification Process

Dental records compare the deceased's teeth with previous records for identification.

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Challenges in Dental Identification

Lack of dental records, poor record quality, or incomplete remains can hinder identification.

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Gait: Walking Pattern

The way a person walks, which can be unique and altered by injury or intent.

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Eyewitness Identification

Identification of a person based on eyewitness accounts of their physical features, which can be unreliable.

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Fingerprints vs. Odontology

The identification of missing persons using fingerprints is more reliable than dental records.

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Study Notes

Forensic Odontology

  • Forensic odontology uses dental records to identify human remains, matching antemortem and postmortem dental information
  • Bite marks on objects or tissue are analysed
  • Identifying signs and symptoms of abuse
  • Assessing age
  • Determining sex
  • Dental identification methods are used for criminal investigations, marriage, monetary compensation, burial procedures, and social identification purposes.
  • Dental morphology and arrangement are unique to each person
  • Teeth are resistant to environmental damage after death
  • Problems with dental identification include missing antemortem records, poor quality records, limited record storage time frames, post-mortem trauma leading to tooth loss, and damage from fire

Forensic Dentist Responsibilities

  • Identifying human remains
  • Identifying victims of mass fatalities
  • Assessing cases involving abuse
  • Estimating age
  • Handling civil cases involving malpractice
  • Sophisticated method of identification compared to other methods
  • Teeth can estimate a person's age
  • Identifying sex and blood type from dental remains
  • Identifying perpetrators/criminals from bitemarks on objects or tissue

Fingerprints vs. Odontology

Trait Teeth Fingerprints
Burns Fire resistant Destroyed by fire
Putrefaction changes No changes Subject to putrefaction
Proof Compatible inconsistencies Well established criteria
Records Useless without records Possible use of possessions

Different Types of Gait

  • Ataxic gait: The foot is raised high and then suddenly dropped on the floor
  • Cerebellar gait: A swaying/staggering manner resembling a drunken person
  • Cow's gait: A manner of walking due to knock-knees, like a cow
  • Paratic gait: Wide stance and short steps, little/no knee bending
  • Spastic gait: Legs held together, short steps, little/no bending
  • Waddling gait: Swaying of the buttocks, like a duck
  • Frogs gait: Hopping from one position to another

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