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AU14 Orthodontics > Patient Examinations > Flashcards

Patient Examinations Flashcards

1
Q

Angle’s classification is only applied to what

A

permanent teeth and the A-P plane of space

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2
Q

Class II skeletal problems can be caused by what

A

the size or positions of the skeletal components

can be maxillary protrusion or mandibular retrusion

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3
Q

What can cause a class III skeletal relationship

A

maxillary retrusion

mandibular protrusion

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4
Q

What are two transverse skeletal contributions

A

maxillary constriction

mandibular dentoalveolar constriction

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5
Q

What are two vertical skeletal and dental contributions

A

long face and increased lower anterior face height; with or without open bite
short face and reduced anterior face height; often deep bite

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6
Q

What does a straight profile indicate

A

optimal relations of maxilla and mandible to each other and to the cranial base; usually class I

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7
Q

What does a convex profile indicate

A 
disproportional relationships
usually class II
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8
Q

What does a concave profile indicate

A 
disproportional relationship
usually class III
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9
Q

What are the four elements of A-P facial form analysis

A

Mx
Mn
Mx/MN
lip protrusion

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10
Q

What are five elements of the vertical facial form analysis

A 
mandibular plane
facial proportions
lip competence
labiomental fold
teeth to upper lip
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11
Q

What are two elements of the transverse facial form analysis

A

upper and lower facial symmetry

Mx teeth to facial midline

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12
Q

What four things does the facial form analysis provide the provider

A

skeletal information in multiple planes
addresses skeletal and dental protrusion by implication
related the teeth to the face
attempts to localize the problem

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13
Q

How can you tell protrusion, normal or retrusion

A

nose-lip-chin interaction

E-line

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14
Q

These two things can be used as a guide for skeletal relationships

A

overjet and molars

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15
Q

What is the SNA position/angle

A

Sella - Nasion - A point (alar cartilage)

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16
Q

What is the SNB position/angle

A

sella- - nasion - B point (chin)

17
Q

What is the ANB position/angle

A

The difference between SNA and SNB

ideal is less than 4

18
Q

How do you find the mandibular plane angle

A

along the angle of the body of the mandible

19
Q

What is the Y-axis

A

the angle from tragus line and the Se/Gn line (sella/tip of chin)

20
Q

What does the Upper incisor and Lower incisor to FH angle mean

A

how proclined the teeth are

21
Q

What does the interincisal angle show

A

the inclination between the incisors; more upright, protrusive, etc.

22
Q

What five things can diagnostic study cased be used for

A 
evaluation
space analysis
tooth size analysis
case presentation
treatment evaluation/documentation
23
Q

What can arch length assessment be used to determine

A

maxillary and mandibular crowding/spacing

24
Q

True or False

Arch dimensions do not change during growth

A

True

25
Q

This is a predictable shift

A

mesial molar shift

26
Q

The predict the size of the premolars and canine on one side of the mandible, what do you calculate

A

take 1/2 the width of the lower incisors + 10.5

27
Q

To predict the size of the premolars and canines on on size of the maxilla, what do you calculate

A

take 1/2 the width of the LOWER incisors + 11.0

28
Q

What does tooth size analysis compare

A

the sum of mesio-distal dimension of maxillary and mandibular teeth; stated in terms of excess

29
Q

What is the significant of a CR-CO shift of the mandible

A

may develop permanently and cause facial asymmetry

30
Q

What is the line measurement of the facial profile analysis

A

nasian to A to B

31
Q

How do you assess vertical facial relationships

A

Thirds

AU14 Orthodontics (11 decks)

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