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ABE Oral Board Review > Traumatic Dental Injuries > Flashcards

Traumatic Dental Injuries Flashcards

1
Q

_____% of bodily injuries are to the orofacial region. _____% in prescholoers

A

5%
17%

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2
Q

Incidence of traumatic dental injuries

A

1-3%

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3
Q

Prevalence of traumatic dental injuries

A

20% permanent dentition
30% primary dentition

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4
Q

Without ______, spontaneous healing of the pulp can occur

A

bacterial ingress
Andreasen

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5
Q

Subacute priority injuries (4)

A

complicated crown fracture
concussion
subluxation
intrusion

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6
Q

Delayed priority injuries

A

uncomplicated crown fracture

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7
Q

Acute priority injuries (5)

A

Root fracture
alveolar fracture
lateral luxation
extrusive luxation
avulsion

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8
Q

Radiographic data for trauma should include_____

A

PAs from multiple angles
PAN or CBCT if alveolar fractures are suspected

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9
Q

Tooth with mature apex, lack of response to ice _______ months post-trauma indicated necrosis

A

3 months

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10
Q

Mobility of several teeth in unison is indicative of ______

A

alveolar fracture

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11
Q

vertical root fractures smaller than _____ are not detectable by CBCT

A

50 um

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12
Q

If tooth is completely intruded, take a _______

A

Lateral cephalogram

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13
Q

For most injuries, radiographs should consist of

A

2 PAs
1 occlusal
CBCT if fractures suspected or avulsion

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14
Q

Only _____ splints should be used due to _________

Author

A

flexible
PDL damage and replacement resorption
Von Arx

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15
Q

In general, splinting for ______ weeks is recommended

A

2 weeks

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16
Q

If there is a root or alveolar fracture, or extensive luxation, splinting time should be _______

A

4 weeks. (4 months if in coronal third)

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17
Q

For a horizontal root fracture, RCT should be completed only to _________

A

the level of the fracture
Cvek

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18
Q

Complications following trauma can occur at _______

A

any time

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19
Q

Immature apex intruded up to 7mm should

A

Spontaneously re-erupt

20
Q

Mature apex intruded up to _____mm should re-erupt, ______mm requires ortho or sx, ______mm requires sx

A

3mm
3-7mm
>7mm

21
Q

If re-eruption of an intruded tooth does not occur within _______, surgical or orthodontic repositioning should be initiated

A

3 weeks

22
Q

Intrusive luxation of mature teeth usually results in ______

A

pulpal necrosis

23
Q

Following intrusive luxation, RCT should be initiated within ______ with 4 weeks of ________

A

2 weeks
CH therapy

24
Q

Clinical and radiographic follow-up for all luxation injuries

A

2 weeks, 4 weeks, 6-8 weeks, 6 months, 1 year, yearly for 5 years.

25
Q

Goal of treating avulsed teeth is to maintain the _____

A

PDL

26
Q

Prognosis of avulsed teeth depends on (3)

Author

A

status of root maturation
time to replantation
extraoral storage media
Andreasen

27
Q

Extraoral dry time should be kept under _____

A

60 minutes

28
Q

Extraoral media recommendations

A

Hanks Balanced Salt Solution
saline
milk

29
Q

________ are recommended following avulsion injuries

A

Antibiotics

30
Q

Antibiotic recommendations following avulsion (over 12 vs under 12)

A

Over 12 – doxycycline
Under 12 – amoxicillin

31
Q

Mature tooth that had improper extraoral storage requires

A

Sodium fluoride soak prior to repositioning

32
Q

Immature tooth that had proper extraoral storage requires

A

Doxycycline soak prior to repositioning

33
Q

Post-op instructions following dental trauma

A

Soft diet for 1-2 weeks
good oral hygiene
Peridex BID for two weeks

34
Q

Primary goal in managing trauma to the primary dentition is

A

minimize any damage to the underlying permanent dentition

35
Q

Most extreme endodontic treatment for primary tooth trauma is ________, whereas _______ is the most common recommendation

A

Pulpotomy
extraction

36
Q

Traumatic injuries that most commonly result in pulpal necrosis

A

Lateral luxation
Intrusive luxation
Avulsion

37
Q

Most common trauma-related complications

A

Pulpal necrosis
Pulp canal obliteration
Resorption (internal, invasive cervical, external replacement)

38
Q

Only _____% of teeth with pulp canal obliteration develop pulpal necrosis

A

7%
Andreasen

39
Q

______ is the major etiological factor in external resorption

A

PDL damage

40
Q

Internal resorption occurs following _______

A

coronal necrosis of pulp tissue
Tronstad

41
Q

Histologic evidence of internal resorption in

A

50% of irreversible pulpitis
77% of necrotic

42
Q

For external resorption, RCT with _______ may limit progression of resorptive defect

A

long-term CH therapy

43
Q

After avulsion with extraoral dry time over 60 minutes, ______ is inevitable and is _______

A

replacement resorption (AAE)
untreatable (Tronstad)

44
Q

_______, or pressure resorption, is associated with orthodontic movement of previously traumatized teeth

A

External apical root resorption

45
Q

How long to wait to resume or commence ortho following trauma

A

No consensus
3 months - 1 year (empirical)
15-30 days (rat model)

ABE Oral Board Review (12 decks)

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