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Oral Pathology, Stephen > chpt 19- forensic dentistry > Flashcards

chpt 19- forensic dentistry Flashcards

1
Q

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/odontology

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2
Q

5 areas of forensic dentistry

A 
records management 
Identification of deceased
Bite pattern evidence 
Abuse
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

comparison of a known object to an unknown object

A

dental identification

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5
Q

6 reasons identification is necessary

A 
criminal 
Marriage 
Money 
Burial 
Social 
Closure
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6
Q

5 methods of identification

A 
personal recognition 
Fingerprints
Dental exam
Anthropologic exam of bones 
DNA
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7
Q

easiest but least reliable method of identification

A

personal recognition

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8
Q

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

last things to be totally destroyed in decomposition

A

calcified structures (bones & teeth)

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10
Q

What can be used to with respect to teethdetermine age of a child patient in 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

Problems with DNA analysis for identification

A

slow, expensive, must have something to compare it with

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13
Q

Positives of dental identification

A

dental evidence remains 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

problems with dental identification

A

poor record keeping

Different tooth numbering systems

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15
Q

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 mortemcharting begins with what

A

soft tissue removal for access

18
Q

If have a mandible with sockets that are open, when was tooth loss suspected

A

post-mortem

19
Q

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

4 final reports from attempts to identify

A

positive
Presumptive
Exclusion
Insufficient

21
Q

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

A

Positive identification

22
Q

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

ante mortem and post mortem data are clearly inconsistent

A

exclusion

24
Q

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

3 types of Mass Disasters

A

Natural
Accidental
Criminal

27
Q

Problems in Mass Disaster identification

A

comingling of bodies, absent records, stress

28
Q

leave rectangular bite mark

A

incisors

29
Q

Leave triangular bite pattern

A

cuspids

30
Q

leave a figure eight bite pattern

A

bicuspids

31
Q

If bite injury has PMNs how old is it

A

<36 hours

32
Q

If bite injury has hemosiderin how old is it

A

> 72 hours

33
Q

If bite injury clinical color is red-purple, how old is it

A

2-4 hours

34
Q

If bite injury clinical color is green-blue, how old is it

A

3-5 days

35
Q

If bite injury clinical color is 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

Evidence of abuse

A

Lip/frenum laceration
Repeated tooth fractures or avulsions
Zygomatic arch and nasal fractures
Bilateral contusions of lip commissures from a gag

Oral Pathology, Stephen (13 decks)

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