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Board Exam Questions 🌸 > Ortho III - Crossbites > Flashcards

Ortho III - Crossbites Flashcards

(59 cards)

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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

25
App for mouthbreathing
Oral vestibular screen or shield
26
Primate spaces of maxillary | Mandibular???
Mesial of canine Distal of canine or mesial of primary molars
27
Normal age of px to have diastema
6 yrs old
28
When should you do diastema closure
When max canine erupts (11-12 yrs old)
29
Diastema >2 mm usually caused by _____
Supernumerary (mesiodens)
30
Pro | Primary determinant of diastema
Canines
31
Tx for an 8 yrs old px with 3 mm diastema
Take radiograph
32
Indirect bone formation
Endochondral bone formation
33
Direct bone formation
Intramembranous bone formation
34
Facing direction of growth where tension is
Deposition (+)
35
Facing away or for pressure
Resorption (-)
36
In piezoelectric theory Deposition is ____ Resorption is _____
Negative | Positive
37
Principle wherein most facial bones are v shaped
Enlow’s V principle of growth RODI resorption- outer Deposition - inner
38
Theory growth is controlled by genetic influence
Genetic theory
39
Theory where sutural growth is the proliferation of the CT bet two bones
Sicher’s theory
40
Theory wherein growth depends on cartilage and periosteum
Scott’s theory
41
In scott’s, ____ is the major contributor in maxillary growth _____ for mandible
Nasal septum | Condylar cartilage
42
Examples of V shape bones (4)
Mandible Maxilla Palate Orbit
43
Most accepted theory that form follows function
Moss theory aka functional matrices theory
44
He supports all theories
Van limborg’s theory
45
Servosystem theory
Petrovic’s theory
46
Growth center of nasomaxillary complex
Nasal septum
47
Growth direction of maxilla and md
Superior - posterior | Up pward backward
48
Growth displacement of mandible and maxilla
Downward and forward (inferior - anterior)
49
Area of cellular hyperplasia
Synchondroses
50
Intraoccipital synchondroses closes at
3-5 yrs old
51
Spheno occipital synchondroses closes at
Until 20 yrs old
52
Spheno ethmoidal closes at
6-7 yrs old
53
Intersphenoidal closes at
During birth
54
Growth center of mandible
Condylar cartilage
55
Site of bony deposition (4)
Condyle Post border of ramus Coronoid process Tip of chin
56
Exception to anterior resorption in mandible
Tip of China
57
Resorption sites of mandible (2)
Ant border of ramus | Ant of md
58
Maxillary arch MD width Mandibular arch ____
128 mm 126 mm
59
Establishment of order space
Width “breadth” Length “depth” Height

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