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Ortho > IOTN key points > Flashcards

IOTN key points Flashcards

1
Q

MOCDO

A 
missing teeth
overjets
crossbites
displacement of contact points
overbites
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2
Q

5i

A

impacted teeth (except 8s)

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3
Q

5h

A

extensive hypodontia (>1 in a quadrant)

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4
Q

5a

A

OJ >9mm

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5
Q

5m

A

reverse OJ >3.5mm, masticatory and speech difficulties

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6
Q

5p

A

defects CLP and other CF anomalies

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7
Q

5s

A

submerged deciduous teeth

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8
Q

hierarchy for grade 5

A 
5i
5h
5a
5m
5p
5s
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9
Q

4h

A

less extensive hypodontia

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10
Q

4a

A

increased OJ >6mm less than or equal to 9mm

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11
Q

4b

A

reverse OJ >3.5mm, no masticatory or speech difficulties

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12
Q

4m

A

reverse OJ >1mm <3.5mm, masticatory and speech difficulties

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13
Q

4c

A

A/P CBs with >2mm discrepancy between RCP and ICP

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14
Q

4l

A

posterior lingual CB with no fct occlusal contact in one or both buccal segments

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15
Q

4d

A

contact displacements >4mm

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16
Q

4e

A

extreme lateral or AOBs >4mm

17
Q

4f

A

increased and complete OB with gingival or palatal trauma

18
Q

4t

A

PE teeth, tipped and impacted against adjacent teeth

19
Q

4x

A

supernumeraries

20
Q

hierarchy for grade 4

A 
4h
4a
4b
4m
4c
4l
4d
4e
4f
4t
4x
21
Q

3a

A

increased OJ >3.5mm less than or equal to 6mm with incompetent lips

22
Q

3b

A

reverse OJ >1mm less than or equal to 3.5mm

23
Q

3c

A

A/P CBs >1mm but less than or equal to 2mm discrepancy between RCP and ICP

24
Q

3d

A

contact displacements >1mm less than or equal to 3.5mm

25
Q

3e

A

lat/AOB >2mm less than or equal to 4mm

26
Q

3f

A

deep OB complete on gingival or palatal tissues, but no trauma

27
Q

hierarchy grade 3

A 
3a
3b
3c
3d
3e
3f
28
Q

grade 1

A

extremely minor malocclusions inc contact displacements <1mm

29
Q

2a

A

increased OJ >3.5mm less than or equal to 6mm with competent lips

30
Q

2b

A

reverse OJ >0mm less than or equal to 1mm

31
Q

2c

A

A/P CB less than or equal to 1mm discrepancy RCP and ICP

32
Q

2d

A

contact point displacements >1mm less than or equal to 2mm

33
Q

2e

A

A/P open bite >1mm less than or equal to 2mm

34
Q

2f

A

increased OB more than or equal to 3.5mm without gingival contact

35
Q

2g

A

pre-normal or post-normal occlusion with no other anomalies (incs up to half a unit discrepancy)

36
Q

hierarchy grade 2

A 
2a
2b
2c
2d
2e
2f
2g
37
Q

what should you do if an occlusal trait is borderline?

A

assign the lower DHC grade

Ortho (22 decks)

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