2018 Questions pt. 2

Question 1

In what syndrome does diminished Neural crest cell migration affect the maxilla and mandible

Answer 1

Treacher Collins

Question 2

A question about Crouzons asking what is not true

Answer 2

The sutures fuse at 7-8 years

Question 3

Fibrous Dysplasia is not associated with what?

Answer 3

Premalignancy. It is rare if the lesions become cancerous and it’s usually related to hx of previous radiation therapy

Question 4

What diagnostic tool is used for Perforated disc

Answer 4

Arthography

Question 5

What diagnostic tool is used for degenerative TMJ

Answer 5

MRI (Might be CT??)

Question 6

Diagnostic tool for condylar hyperplasia

Answer 6

Tc99

Question 7

Most radiation for TMD

Answer 7

Tc99 (Medical CT not a choice but would be answer)

Question 8

T/F questions: Diagnose hyperdivergent patient early and early treatment is indicated

Answer 8

T on both statements

Question 9

What is Neocytokine not involved in?

Answer 9

• Does not increase during tooth movement
• Not found in gingival turnover
• Doesn’t affect gingival response and fibroblasts

Question 10

What dentoalveolar affects do LLHA have?

Answer 10

Impaction of 2nd molars and maintains leeway space

Question 11

How much folic acid decreases Cleft Lip/Palate? and by what percentage?

Answer 11

0.4mg folic acid

30% decrease

Question 12

Early extraction of mandibular primary canine is acceptable in all situations except:

Answer 12

Correction of midline shift

Question 13

Normal range of opening for adults

Answer 13

50 mm opening

12 mm lateral/protrusive

Question 14

How do you determine the ideal amount of maxillary impaction

Answer 14

Lips at rest, measurement of lip to incisor. Normal is 2-3 mm so anything beyond that is amount for impaction

Question 15

When treating Class II malocclusion, what mechanics should you use to prevent relapse?

Answer 15

Mechanics to decrease the SN-Occlusal plane angle or CCW rotation. Increasing the SN-Occlusal plane or have a CW rotation of the mandible, is more prone to relapse

Question 16

*ABO Cast Radiograph Exam doesn’t evaluate what?

Answer 16

Overbite

Question 17

If patient has a lateral shift, what is the first thing you do to diagnose?

Answer 17

Check midlines
- If midlines are shifted at rest and in occlusion, true skeletal or neuromuscular asymmetry
- If midlines are on at rest and shifted in occlusion, dental asymmetry functional shift
??Use flat occlusal plane splint if not clinically detectable

Question 18

What is true about Lichen Planus

Answer 18

Pruitic Lesions

Question 19

Question about RPHG

Answer 19

470 g below occlusal plane

Question 20

Autotransplant tooth

Answer 20

1/2 root formation

Question 21

Hypertelorism is associated with what?

Answer 21

Medfacial cleft or median cleft

Question 22

What should be the inclination of the incisors relative to the occlusal plane when doing an anterior resin-bonded bridge?

Answer 22

Perpendicular

Question 23

Where does the mandible form in relation to Meckel’s cartilage

Answer 23

Lateral to Meckel’s cartilage

Intramembranous ossification

Question 24

T/F, The mandiblular archform is based on the maxilla

Answer 24

False, the maxilla archform is based on the mandible

Question 25

Which is more contagious, HIV or Hep C

Answer 25

Hep C

Question 26

T/F, Health care providers should be vaccinated for Hep B and Hep C

Answer 26

False | Hep C has no Vaccine

Question 27

What is the most common chronic bloodborne pathogen in the US

Answer 27

Hep C

Question 28

How can you prevent growth in condylar hyperplasia?

Answer 28

High Condylectomy

Question 29

T/F, The Parotid gland secretes 60% saliva

Answer 29

False, It only contributes 20%

Question 30

Describe what limits the amount of expansion in SARPE

Answer 30

Coronoid process

Question 31

What does not derive from neural crest cells

Answer 31

Ameloblasts

Question 32

What doesn't open in RPE

Answer 32

Premaxillary suture

Question 33

CBCT is not accurate in assessing what?

Answer 33

Bone thickness, but it is good for height

Question 34

What is not correct about OKC

Answer 34

Occurs most likely in the maxilla

Question 35

Ankylosis may occur for all of the reasons except?

Answer 35

Traumatic occlusion

Question 36

Which correction is the most stable post-treatment

Answer 36

Curve of Spee

Question 37

Why does orthodontic treatment cause perio problems in active disease?

Answer 37

Because osteoblasts do not increase and cannot function in an inflammatory environment

Question 38

HOw to you measure maximum opening?

Answer 38

Incisal edge to Incisal edge then add the OB

Question 39

What is affected more if a 9 year old is injected with growth hormone, maxilla or mandible

Answer 39

Mandible

Question 40

What is not characteristic of Acromegaly

Answer 40

It is not genetically inherited

Question 41

What is the most anterior inferior point on foramen magnum

Answer 41

Basion