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ortho > week 3 > Flashcards

week 3 Flashcards

1
Q

what is the space available

A

mesial or permanent 1st molar to mesial of contraleral permanent 1st

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2
Q

what is the space required

A

Mesiodistal width of all teeth 2nd premolar to contraleral 2nd premolar

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3
Q

what are the assumptions of space analysis

A

AP position of incisors is correct

space avilable with not change with growth

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4
Q

ways of measureding crowding/spacing for unerupted teeth

A

Measure on radiographs

Estimation from proportionality tables

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5
Q

what is the Moyer’s estimation

A

Measure mandibular incisors and use a table

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6
Q

how does Tanaka/Johnston mestimate Manibular in one quadratn

A

1/2 width of permanent mand incisors+10.5mm

also measure the 2 incisors for that quadrat

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7
Q

how does Tanaka/Johnston estimate max in one quadrant

A

1/2 width of permanent mand incisors+11mm

also measure the 2 incisors

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8
Q

how do you calculate ANB

A

SNA-SNB

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9
Q

what does SNA say

A

Relative AP position of Maxilla

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10
Q

what does SNB say

A

Relative AP position of the Mandible

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11
Q

what is the E line

A

Esthetic plane from the nasal tip to pogonion soft tissue (chin)

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12
Q

where should the upper Lip be in relation to the E line

A

4mm behind

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13
Q

where should the lower lip be in relation to the E line

A

2mm behind

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14
Q

what are the limits of angles classification

A

ONly A-P plane
No intra-arch problems (crowding/spacing)
does no discriminate between skeletal and dental malocclusions

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15
Q

what are the parts of Ackerman and Proffit’s classification of Malocclusion

A
  1. Facial proportion and esthetics
  2. alignment and symmetry with dental arches
  3. Skeletal and Dental relations in the transverse plane
  4. skeltal and dental relations in the antero-posterior plane
  5. skeletal and dental relations in the vertical plane
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16
Q

what problems should be prioritized

A

Developmental problems

17
Q

what is the first part for treatment planning for ortho

A

Controll disease states first

18
Q

what should the patient be informed of when treatment planning

A

Setting priorities for ortho treatment

balance patients wishes and severity of problem

19
Q

what should affect your choice of a specific plan

A

Interactions amoung various possible solutions
Compromise
Cost-risk/benefit analysis

20
Q

what is the goal of all ortho treatment that may have to be compromised

A

Esthetics, occlusion, and stability (may have to remove a tooth for ortho to compromise)

21
Q

what is included in a cost

A

Burden of care (is it worth it)

22
Q

what is included in a risk

A

Negative consequences
Side effects
unexpected events

23
Q

what are the general indications for treatment

A

Psychosocial
Developmental
Functions (respiration, TMD, mastication and speech)
trauma/Disease control

24
Q

what are the 3 parts of malocclusion

A

Skeltal
Soft tissue
Dental

25
Q

how to help with class 2

A

Elastics
Head gear
extraction to create space

26
Q

how to help with class III

A

elastics
Head gear
extraction to create space

27
Q

why evaluate faces using a Ceph

A

Pretreatment eval and diagnosis
Post treatment eval
treatment progress
GRowth changes

28
Q

what is used to look at certical proportion in a ceph

A

Mandiular plane angle

% face height

29
Q

what is used to look at growth direction

A

Y-axis

30
Q

what length face does class II have

A

Long face

31
Q

what length face does class III have

A

Short face

ortho (22 decks)

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