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xD2 Oral Path Final Exam > OPF Forensic Dentistry (Ch19) > Flashcards

OPF Forensic Dentistry (Ch19) Flashcards

1
Q

What is an area of dentistry concerned with correct management, examination, evaluation and presentation of dental evidence in criminal or civil legal proceedings in the interest of justice?

A

Forensic Dentistry

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2
Q

What are 5 areas of forensic dentistry?

A
  1. Records management
  2. Identification of deceased
  3. Bite pattern evidence
  4. Abuse
  5. Expert witness
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3
Q

Who must keep accurate dental records to include doctor’s progress notes, study casts, photographs, and radiographs?

A

All dentists

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4
Q

In dental forensics, comparison of a known object to an unknown object?

A

Dental identification

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5
Q

What are 6 reasons identification is necessary?

A
  1. Criminal
  2. Marriage
  3. Money
  4. Burial
  5. Social
  6. Closure
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6
Q

In dental forensics, what are 5 methods of identification?

A
  1. Personal recognition
  2. Fingerprints
  3. Dental exam
  4. Anthropologic examination of bones
  5. DNA
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7
Q

What is the easiest but least reliable method of identification?

A

Personal recognition

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8
Q

What is a specific and unique indentification pattern that does not change throughout life as teeth and supporting structures do, but can be destroyed or compromised in death and decomposition?

A

Fingerprints

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9
Q

What are the last things to be totally destroyed in decomposition?

A

Calcified structures (such as bones or teeth)

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10
Q

With respect to teeth, what can be used to determine the age of a child patient in an anthropologic exam?

A

Tooth calcification and eruption charts

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11
Q

What can be used with respect to teeth to approximate the age of an adult patient in anthropologic exam?

A

Tooth attrition, secondary dentin (pulp will be smaller), cementum apposition

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12
Q

What are some problems with using DNA analysis for identification?

A

It is slow, expensive, must have something to compare it with

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13
Q

What are some positives of dental identification?

A

Dental evidence remains for a long time postmortem, each tooth has 5 sides for multiple comparisons, dental materials hold up under heat and may have identifying marks

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14
Q

What are some problems with dental identification?

A
  1. Poor record keeping

2. Different tooth numbering systems

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15
Q

What are the 2 worst cases for dental identification?

A

Fully edentulous or full permanent dentition with no restorations

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16
Q

Where is missing persons data loaded?

A

FBI National Crime Information Center (NCIC)

17
Q

Post mortem charting begins with what?

A

Soft tissue removal for access

18
Q

If the corpse has a mandible with sockets that are open, when was tooth loss suspected?

A

Post-mortem

19
Q

What are some oral-facial means of identification?

A 
Teeth 
Bone (tori, anomalies) 
Foreign bodies 
Sinus configuration 
Skull sutures 
Soft tissue (rugae and lip prints) 
Photographic comparison 
DNA (from pulp)
20
Q

What are the 4 final reports from attempts to identify?

A
  1. Positive
  2. Presumptive
  3. Exclusion
  4. Insufficient
21
Q

Ante mortem and post mortem data match is sufficient detail, with no unexplainable discreapancies, to establish that they are from the same individual

A

Positive identification

22
Q

What is the term for when ante mortem and post mortem data have consistent features but, because of the quality of either the post mortem remains or the ante mortem evidence, it is not possible to establish identity positively?

A

Presumptive/ possible identification

23
Q

What is the term for when ante mortem and post mortem data are clearly inconsistent?

A

Exclusion

24
Q

What is the term for when available information is insufficient to form the basis for a conclusion?

A

Insufficient

25
Q

Are there a minimum number of points of comparison required for a positive identification?

A

No, uniqueness of one or two teeth may be sufficient

26
Q

What are 3 types of Mass Disasters?

A
  1. Criminal
  2. Natural
  3. Accidental
27
Q

What are the problems in Mass Disaster identification?

A

Comingling of bodies, absent records, stress

28
Q

Which teeth leave a rectangular bite mark?

A

Incisors

29
Q

Which teeth leave a triangular bite pattern?

A

Cuspids

30
Q

Which teeth leave a figure eight bite pattern?

A

Bicuspids

31
Q

If a bite injury has PMNs how old is it?

A

Less than 36 hours

32
Q

If a bite injury has hemosiderin how old is it?

A

More than 72 hours

33
Q

If a bite injury has a clinical color of red-purple, how old is it?

A

2-4 hours

34
Q

If a bite injury has a clinical color of green-blue, how old is it?

A

3-5 days

35
Q

If a bite injury has a clinical color of tan-yellow, how old is it?

A

10-14 days

36
Q

Do dentists have responsibility to identify and report cases of abuse?

A

Yes

37
Q

What are examples of evidence of abuse?

A
  1. Lip/frenum laceration
  2. Repeated tooth fractures or avulsions
  3. Zygomatic arch and nasal fractures
  4. Bilateral contusions of lip commissures from a gag

xD2 Oral Path Final Exam (6 decks)

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