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d.b.review 2 > Ortho III - Crossbites > Flashcards

Ortho III - Crossbites Flashcards

1
Q

App for pre adolescent for post crossbites (3)

A

W arch
Expansion Lingual arch or Modified W arch
Quadhelix

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2
Q

App for adolescent in post crossbites (2)

A

Jackscrew

Surgery

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3
Q

Quadhelix indication (2)

A

Expand palate

For thumbsucking

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4
Q

Most common cause of single tooth ant crossbite

A

Over retained deciduous

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5
Q

Tx for single tooth ant crossbite

A

Inclined planes

Anchorage in 4 perm md I

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6
Q

tx for 2 teeth ant crossbite

A

Inclined planes

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7
Q

Indication for multiple teeth ant crossbite (2)

A 
Developing class III (mixed dent)
Established skel class III
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8
Q

Tx for skel ant crossbite

A

Reverse pull headgear or chincup or refer

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9
Q

Tx for established skeletal class 3

A

Bilat sagittal osteotomy

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10
Q

Open bite aka

A

Nega overbite or vertical overlap

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11
Q

Most common cause of openbite

A

Thumbsucking

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12
Q

Buccinator mechanism

A

Buccinator
Orbicularis oris
Sup pharyngeal constrictor

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13
Q

Triad of thumbsucking

A

Duration
Frequency
Intensity

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14
Q

Most common cause of tongue thrusting

A

Thumbsucking

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15
Q

Types of swallowing

A

Infantile swallowing

Adult swallowing

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16
Q

Infantile swallowing used what CN

A

CN VII

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17
Q

Appliance of choice for tongue thrusting

A

Tongue crib

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18
Q

Appliance of choice to correct swallowing

A

Blue grass

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19
Q

Adult swallowing what CN

A

CN V

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20
Q

Recommended appliance thumb or finger sucking

A

Palatal crib

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21
Q

App for bruxism

A

Night guard or bite plate

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22
Q

App for hyperactive mentalis

A

Lip bumper
Plumber
Mayne
Denholtz

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23
Q

App for cheek or lip biting

A

Oral screen

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24
Q

App for tongue thrusting

A

Tongue crib

25
Q

App for mouthbreathing

A

Oral vestibular screen or shield

26
Q

Primate spaces of maxillary

Mandibular???

A

Mesial of canine

Distal of canine or mesial of primary molars

27
Q

Normal age of px to have diastema

A

6 yrs old

28
Q

When should you do diastema closure

A

When max canine erupts (11-12 yrs old)

29
Q

Diastema >2 mm usually caused by _____

A

Supernumerary (mesiodens)

30
Q

Pro

Primary determinant of diastema

A

Canines

31
Q

Tx for an 8 yrs old px with 3 mm diastema

A

Take radiograph

32
Q

Indirect bone formation

A

Endochondral bone formation

33
Q

Direct bone formation

A

Intramembranous bone formation

34
Q

Facing direction of growth where tension is

A

Deposition (+)

35
Q

Facing away or for pressure

A

Resorption (-)

36
Q

In piezoelectric theory
Deposition is ____
Resorption is _____

A

Negative

Positive

37
Q

Principle wherein most facial bones are v shaped

A

Enlow’s V principle of growth
RODI
resorption- outer
Deposition - inner

38
Q

Theory growth is controlled by genetic influence

A

Genetic theory

39
Q

Theory where sutural growth is the proliferation of the CT bet two bones

A

Sicher’s theory

40
Q

Theory wherein growth depends on cartilage and periosteum

A

Scott’s theory

41
Q

In scott’s, ____ is the major contributor in maxillary growth

_____ for mandible

A

Nasal septum

Condylar cartilage

42
Q

Examples of V shape bones (4)

A

Mandible
Maxilla
Palate
Orbit

43
Q

Most accepted theory that form follows function

A

Moss theory aka functional matrices theory

44
Q

He supports all theories

A

Van limborg’s theory

45
Q

Servosystem theory

A

Petrovic’s theory

46
Q

Growth center of nasomaxillary complex

A

Nasal septum

47
Q

Growth direction of maxilla and md

A

Superior - posterior

Up pward backward

48
Q

Growth displacement of mandible and maxilla

A

Downward and forward (inferior - anterior)

49
Q

Area of cellular hyperplasia

A

Synchondroses

50
Q

Intraoccipital synchondroses closes at

A

3-5 yrs old

51
Q

Spheno occipital synchondroses closes at

A

Until 20 yrs old

52
Q

Spheno ethmoidal closes at

A

6-7 yrs old

53
Q

Intersphenoidal closes at

A

During birth

54
Q

Growth center of mandible

A

Condylar cartilage

55
Q

Site of bony deposition (4)

A

Condyle
Post border of ramus
Coronoid process
Tip of chin

56
Q

Exception to anterior resorption in mandible

A

Tip of China

57
Q

Resorption sites of mandible (2)

A

Ant border of ramus

Ant of md

58
Q

Maxillary arch MD width

Mandibular arch ____

A

128 mm

126 mm

59
Q

Establishment of order space

A

Width “breadth”
Length “depth”
Height

d.b.review 2 (21 decks)

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