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Board Exam Questions 🌸 > Ortho III > Flashcards

Ortho III Flashcards

1
Q

Stage that determines number of teeth

A

Initiation stage

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2
Q

Enamel organ give rise to

A

Enamel

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3
Q

Dental papilla give rise to

A

Dentin

Pulp

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4
Q

Dental sac or follicle give rise to

A

Cementum
PDL
Alveolar bone

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5
Q

Joined IEE and OEE forms

A

Reduced enamel epith

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6
Q

Responsible for root formation shape and number of roots

A

Hertwig’s epithelial rooth sheath

From cervical loop

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7
Q

Remnants of HERS

A

Epith rest of Malassez

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8
Q

Responsible for shape and number of apex

A

Epith diaphragm

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9
Q

Barrier once teeth erupts

A

Nasmyth’s membrane or primary enamel cuticle

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10
Q

Bone in hand and wrist radiograph

A

Adults - 27 if not included radius and ulna
29/30 Boards

Puberty - 28

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11
Q

Conditions associated with supernumerary teeth (4)

A

Gardner’s
Down’s
Cleidocranial dysostosis or dysplasia
Sturge weber syndrome

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12
Q

Most common supernumerary teeth

A

Mesiodens

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13
Q

Stage of tooth development does supernumerary occur

A

Initiation stage

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14
Q

Teeth present in radiograph of newly born child

A

24
20 decid
4 molars

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15
Q

In serial extraction extract ___ first BEFORE _____ erupts

A

1st PM

C

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16
Q

Ideal space deficiency for serial extraction to happen

A

> 10mm

8 mm BOARDS

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17
Q

Difference bet MD width of CDE and 345

A

Leeway space

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18
Q 
Leeway space os 
A. Positive
B. Negative
C. Zero 
D. None of the above
A

Positive

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19
Q

Dentin or enamel deposition during bell stage

A

Appositional stage

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20
Q

Ave leeway space for max

A

1.8 mm (0.9mm)

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21
Q

Ave leeway space for md

A

3.4 (1.7 mm)

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22
Q

Easiest ortho movt

Away from the socket

A

Extrusion

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23
Q

Most difficult ortho movt

Into the socket

A

Intrusion

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24
Q

Crown moves in one direction
Tip of root in opposite direction
Most common ortho tooth movt

A

Tipping

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25
Q

Center of rotation of Incisors

A

2/3 apicocervically of root

1/3 cervicfacially

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26
Q

Crown moves in one direction while root apex in fix position

A

Torque

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27
Q

Revolving the tooth around its long axis

A

Rotation

28
Q

Present on side toward which the tooth is being moved

A

Osteoclast

29
Q

Present on the side of root from which the tooth is moved

A

Osteoblast

30
Q

Best force
Faster
Frontal resorption

A

Light continuous force

31
Q

Translation aka

A

Bodily movements

32
Q

Nolla stage when tooth is clinically seen

A

Stage 8- 2/3 of root formed

33
Q

Any decid exo during or after stage 6 can cause ____

A

Rapid eruption

34
Q

If decid exo at nolla’s stage 4 or 5 can cause ______

A

Tooth delay eruption

35
Q

Nolla stage start of tooth eruption

A

Stage 6

36
Q

No peer involvement

A

Solitary

37
Q

Observing others to play

A

On looking

38
Q

Play activity along side

A

Parallel play

39
Q

With interaction

A

Associative play

40
Q

Highest form of play

A

Cooperativd

41
Q

First bacteria to colonize mouth after birth

A

Strep salivarius

42
Q

PH of saliva

A

6.2 - 7.0 WEAK ACID

43
Q

Critical pH cause demineralization

A

5.5 - 5.7

44
Q

Initial sign of dental caries

A

White spot lesion or incipient caries

45
Q

Tooth mineral is affected first when there is active caries (3)

A

Calcium
Phosphate
Carbonate!

46
Q

Fluoride in comm water

A

Fluoridation

47
Q

Fluoride applied by dentist

A

Fluoridization

48
Q

Determine optimal fluoride

A

Temp

49
Q

Fluoride that inhibit what enzyme (2)

A

Phosphatase

Enolase

50
Q

Site of excretion of fluoride

A

Kdneys

51
Q

Optimal fluoride cxn for public water

A

0.7 to 1.2 ppm

52
Q

Fluoride converts hydroxyapatite to _____

A

Fluoroapatite

53
Q

Toothpaste contains ____ of fluoride

A

1,100 PPM

54
Q

Fluoride varnish cxn

A

5% sodium fluoride

55
Q

% of SnF that causes discoloration

PH

A

8%

2.1-2.3

56
Q

Adult lethal dose of fluoride

Child:____

A

4-5 g

15 mg/kg

57
Q

Acidulated phosphate fluoride cxn

pH????

A

1.23%

3-3.5

58
Q

Use for fluoride toxicity

A

Syrup of ipecac

Milk of magnesia MAIN!!!

59
Q

Cleft palate occurs during _____ week in utero

Cleft lip??

A

8-10 weeks

5-6 week

60
Q

Cleft lip repair is delayed up to ____ months after birth

A

9-18 mos

61
Q

General BV inflammation with eye ulcerations

A

Behcet’s syndrome

62
Q

Open apex aka

A

Blunderbuss apex

63
Q

Internal root resorption caused by caoh

A

Pink tooth of mummery

64
Q

MTA came from

A

Portland cement - principal content

65
Q

Measurements of SOC

A

1-1.5 incisal
1 labial or prox
0.5 mm lingual

66
Q

Overall reduction size of SSC

A

1.5 mm

Board Exam Questions 🌸 (21 decks)

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