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ABO Written Exam > 2018 Questions pt. 1 > Flashcards

2018 Questions pt. 1 Flashcards

1
Q

What does not go through the Foramen Lacerum?

A

Trigeminal Nerve

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2
Q

What structures are associated with and pass through the Foramen Lacerum?

A

Greater Petrosal Nerve joins with the Deep Petrosal Nerve, One terminal branch of the Ascending Pharyngeal Artery (external carotid branch), Internal Carotid artery exits

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3
Q

What cranial bones surround the Foramen Lacerum?

A

Petrous portion of the Temporal bone, Spenhoid bone

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4
Q

Which cranial fossa is the Foramen Lacerum located?

A

Middle Cranial Fossa

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5
Q

Which muscle elevates the tongue?

A

Styloglossus and possibley palatoglossus (elevates posterior aspect of tongue)

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6
Q

What muscles attaches to the coronoid process of the mandible?

A

Temporalis Muscle (Temporal) and Masseter Muscle

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7
Q

For every 1 mm of proclination of lower incisors, how much degree changed is noted on the IMPA

A

1mm tipping = 2.5-3.3 mm (answer to that question is 3)

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8
Q

**Which cephalometric angle is not changed as the cranial base steepens?

A

SNA, SNB, SN-MP, FMIA, FMA

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9
Q

1 ppm Fluoride in the water, what percentage of caries reduction occurs?

A

20-55%

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10
Q

When performing a canine substitution case, what aspect of the patient doesn’t matter?

A

Height of Central Incisors

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11
Q

In class I occlusion, what does the DL cusp of the maxillary first molar occlude with?

A

Distal Marginal Ridge of the Mandibular First Molar

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12
Q

When the diameter of the archwire is doubled (2x), what happenes to the strength of the wire

A

It goes up 8x

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13
Q

Taste for posterior 1/3 of the tongue comes from what nerve

A

CN IX

Glossopharyngeal

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14
Q

Which nerve does not innervate the tongue

A

Vagus

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15
Q

Which development craniofacial syndrome does not show delayed tooth eruption?

A

Hemifacial Microsomia

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16
Q

T/F The mandibular plane angle does not decrease with age

A

False, it does decrease with age

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17
Q

When a patient shows bilateral cleft lip, what embryological features of development fail to fuse?

A

the Maxillary and median nasal processes

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18
Q

Most common clinical feature of Apert Syndrome

A

Syndactyl

Also mental deficit

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19
Q

What is the inheritance of Apert Syndrome?

A

Autosomal dominant

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20
Q

What trimester does Hemifacial microsomia occur in?

A

First Trimester

Will be a T/F question

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21
Q

Describe the effect on the condyle in hemifacial microsomia

A

Condyle may vary from thin, flat ramus with condyle, to complete aplasia of these structures
(Will be a T/F question)

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22
Q

How is Dentinogenesis Imperfecta inherited?

A

Autosomal Dominant

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23
Q

What is the prevalence of Dentinogenesis Imperfecta

A

1/6000-8000

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24
Q

Does Dentinogenesis Imperfecta affect only permanent dentition?

A

No, affects both dentitions

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25
Q

Which cell is not in the hyalinization zone?

A

PMN or Osteoclasts

Not sure which

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26
Q

What does the frontonasal process not contribute to?

a. Vermilion Border
b. Ala
c. Maxillary Process
d. Philtrum

A

c. Maxillary Process

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27
Q

Bolton point is associated with what cephalometric landmark

A

Occipital condyle

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28
Q

Which part of the mandible is associated with secondary cartilage for growth

A

Mandibular Condyle

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29
Q

When does the right/left mandible fuse

A

at 9 months of age

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30
Q

??Question: Something about CR

Options with Anterior/Superior or no consensus

A

Document says to go with no consensus

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31
Q

How do we know how mandibular growth works?

A

Through implant studies

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32
Q

What causes translational growth (Moss articles)

A

Capsular matrix

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33
Q

What is not a primary growth site?

A

Synostosis

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34
Q

According to the functional matrix theory, what causes sutural growth?

A

soft tissues

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35
Q

What bone allows for accomodation of the orbit

A

Lacrimal

36
Q

List most common missing teeth in order

A 
3rd Molars (20%), Mandibular 2nd premolars (3.4%), maxillary lateral incisors (2.2%), maxillary 2nd premolars
This was a T/F questions with True being correct
37
Q

Wire least likely to give palatal root torque

A

NiTi

38
Q

HPHG is above the center of rotation, what is the affect dentally

A

Distal Root Tip (DRT) and Intrusion

39
Q

Which is true regarding Twin Block

a. Increased horizontal growth in long term
b. skeletal vertical changes
c. dentoalvolar and skeletal alvoeolar changes
d. acrylic helps with less proclination

A

Both C and D
Dentoalveolar and skeletal alveolar changes
&
Acrylic helps with less proclination

40
Q

What is an alternative to heat sterilization?

A

Vaporized H2O2

41
Q

Decreased voxel size results in what?

A

Increased number of photons and more radiation

42
Q

International commission on radiology for population uses what radiation measurement

A

Equivalent dose OR effective dose.

Not sure

43
Q

Define effective dose

A

For the whole body

It is the addition of the equivalent doses for all organs, each adjusted for sensitivity of the organ to radiation

44
Q

Define equivalent dose

A

for individual organs

based on absorbed dose to an organ, adjusted to account for the effectiveness type of the type of radiation

45
Q

Define absorbed dose

A

Amount of energy deposited by radiation in a mass

46
Q

When doing canine substitution, what do you not do to the canine to make it look like a lateral?

A

Adjust the distal marginal ridge

47
Q

What is the percentage of Class II patients that are mandibular retrognathic?

A

75%

48
Q

What is the width/height ratio of a central incisor?

A

80%

49
Q

What is the percentage of fluoride in mouthwash?

A

0.05%

50
Q

T/F question about white spot lesions

What percentage of patients have decalcifications post treatment?

A

50%

Question says 30% and is false.

51
Q

What is the most common error when taking a ceph

A

Magnification error - patient to anode distance or film to patient distance

52
Q

What is the most common problem collecting analog ceph measurement data

A

identification of landmarks

53
Q

Patient has open lock, shifts to L and pops on the L side, what does the patient have and on which side?

A

Posterior displacement on L side

54
Q

What is NOT the biological function of paranasal sinuses?

a. Increase resonance of voice
b. Buffer for facial trauma
c. Insulating sensitive structures like dental roots from temperature fluctuations
d. Decrease weight of head
e. Something about breathing

A

Something about breathing (haha very detailed)

55
Q

What muscles are not involved in smiling?

A

Orbicularis Oris & Procerus

56
Q

What is responsible for the initiation of puberty?

A

Hypothalamus

57
Q

Which bone of the cranial base undergoes both endochondral and intramembranous growth

A

Sphenoid bone

58
Q

Which type of medication is contraindicated for ortho treatment and what mode of delivery?

A

Parenteral bisphosphanates

59
Q

Can Osteoradionecrosis be viewed with radiographs

A

Yes

60
Q

How do Bisphosphanates affect tooth movement?

A

It decreases tooth movement

61
Q

T/F, Bisphosphanates will accumulate in hydroxyapatite

A

True

62
Q

In CPR, how many compressions per minute?

A

at least 100

63
Q

Where do compressions occur in a child?

A

lower half of the sternum

64
Q

What affects TAD stability

A

Cortical Bone Thickness

65
Q

Which of the follow is not true about the MARA appliance:
A. Significant distalization of maxillary molars
B. Slight increase in mandibular length
C. Not as good headgear effect as HERBST
D. Proclines the lower incisors more than HERBST

A

A. Significant distalization of maxillary molars

66
Q

What is the chromium/nickel composition in SS archwires?

A

18% Chromium

8% Nickel

67
Q

T/F, Stainless Steel archwires have a high modulus of elasticity?
Define “Modulus of Elasticity”

A

F, It has a low modulus of elasticity. This means it is easily deformed
Modulus of Elasticity is the tendency of an object to deform when forces are applied

68
Q

What is attributed to a low change in stress, but high change in strain on the stress/strain curve

A

Phase transformation

Austenitic - Martensitic NiTi wires.
Wires that undergo a phase transformation are called Austenitic NiTi wires while those already stabalized in the final phase are called Martensitic NiTi wires

69
Q

What would cause recession in adults?

A

Either Poor OH or Orthopedic expansion but most likely Orthopedic expansion is the answer

70
Q

What is the Deviation Angle in the bracket?

A

It is the same as SLOP.
Defined as rotation movement of the rectangular archwire from its passive position to a position where two opposite edges of the archwire contact two opposite walls of the bracket slot

71
Q

Is the Intraoral Vertical Ramus Osteotomy (IVRO) setback surgery in Class III patients also beneficial in relief of undesirable TMJ symptoms?

A

Yes, it is good

Do not rigid fixate

72
Q

A questions about what a FORSUS does not do

A

One answer is, it does not affect SNA.

If that is not an option, intrusion of Maxillary molars

73
Q

How long does the Regional Acceleratory Phenomenom last?

A

2-4 months

74
Q

What causes root resorption

A

High forces, Duration of treatment

75
Q

What is correlated with Root Resorption

A

Previous History of RR. High intermittent forces was listed as an option too but I think Previous Hx is right

76
Q

Where is the Center of Rotation in tipping of the Mx Incisors

A

Apical 1/3

77
Q

In a dental open bite, where are Mx incisors compared to location of stomion superioris

A

Superior

78
Q

A question about anterior open bite…

A

Long mandibular corpus

79
Q

At what week period does the tongue form?

A

4 weeks

80
Q

When does the soft palate develop

A

8-12 weeks

81
Q

What is not generally an issue when performing Distraction Osteogenesis for the midsymphisis

A

TMD

82
Q

What is the percentage size of the lateral compared to central incisor?

A

60%

83
Q

Standard of care for malpractice is determined by what entity

A

Courts

84
Q

What percentage of patients with high condylar fracture have normal growth in mandible

A

75%

85
Q

What treatment to a root has a higher chance of fracture?

A

CaOH apexification

ABO Written Exam (24 decks)

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