L2- Extra oral exam Flashcards

(43 cards)

1
Q

symmetrty lines

A

Glabela- subnasale and pogonion

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2
Q

Glabela- subnasale

A

reference line in symmetry

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3
Q

evaluate position of chin with

A

pogonion line

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4
Q

assess midline in what view

A

frontal view

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5
Q

T/F can have symmetrical face but no symmetry

A

true – you can have a midline shift

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6
Q

vertical proportions

- basic

A

usually in thirds – should all be the same

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7
Q

lateral view is what plane

A

sagital plane

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8
Q

key area for face esthetics

A

inferior third of the face

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9
Q

key area for face esthetics

A

inferior third of the face

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10
Q

ricketts esthetic plane

A

tip of nose – pogonion

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11
Q

lower vermillion border in relation to E plane

A

O to +3mm from E plane

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12
Q

Ricketts esthetic plane affected by

A

tooth position and inclination

distance increases with growth or aging

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13
Q

naso-labial angle formed betwee

A

nose and upper lip

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14
Q

normal values of nasolabial angle

A

90-110 degrees

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15
Q

nasolabial angle affected by

A

LIP - upper incisors position and their incliniation

NOSE - cannot be modified with ortho

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16
Q

frontal view shows us

A

frontal - transverse plane

cephalic index - Cl

symmetry

vertical proportions

lip functin

smile esthetics

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17
Q

cephalic index

A

an anthropometric value based on the ratio between the width and length of the head

max head width X 100 DIVIDED by maximum head length

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18
Q

mesocephalic CI

A

mesoproscopic / normocephalic

CI = 79= 81

represents balanced growth and harmonic facial proportions

19
Q

mesoproscopic / normocephalic

20
Q

CI that represents balanced growth

21
Q

CI greater than 81 represents

A

brachycephalic / euryproscopic = SHORT WIDE FACE AND COUNTER-CLOCKWISE GROWTH

associated with deep bite
class II div 2
strong musuculature

bruxers

22
Q

class II div 2 and counter clockwise grwoth considered

A

brachycephalic – CI> 81

23
Q

CI < 79

A

Doluchocephalic / leptoprosopic

24
Q

Doluchocephalic / leptoprosopic

A

CI < 79 –> CLOCKISE RITATIONAL GROWTH

25
clockwise rotational growth
Doluchocephalic / leptoprosopic
26
skeletal open bite associated with
Doluchocephalic / leptoprosopic | CI < 79
27
characteristics of CI < 79
- clockwise rotational gorwth - skeletal open bite - weaker musculatiure - steep madibular plane
28
reference line for facial symmetry
Glabela- subnasale
29
progonion evaluates?
position of the chin
30
bottom 1/3 of vertical proportions
divided further into upper 1/3 and lower 2/3 the mouth should be about 1/3 of the way between the base of the nose and the chin
31
ideal labial / lip function
at rest --> lips in contact or slightly apart no strain relaxed position normal respiration normal swallowing
32
neuromuscular imbalance mouth breathing - general implicatoin
tongue thrust -- anterior open bite
33
neuromuscular imbalance in relation to lips can lead to
lips apart at rest lip strain to close lip trap mouth breathing - tongue thrust anterior open bite increased overjet
34
lateral view in what plane and proportions? plus angle
sagital plane vertical proportions profile analysis NASO-LABIAL ANGLE lip contour lip function
35
profile analysis reflects ___ skeletal imbalances
Mx-Md position dental imbalances incisor position and/or inclination
36
convex profile more associated with | - elaborate
``` retruded mandible - maybe class II - E line is closer / on top of lips ``` vs concave - looks more class III --> E line is far in front of the lips
37
___ part of face is key to facial esthetics
inferior 1/3
38
rickett esthetic E plane
tip of nose -- Pogonion affected by tooth position and inclination
39
rickett esthetic E plane - relation to lower vermillion border
0+-3 mm distance INCREASES with growth or age
40
naso-labial angle normal values
90-110 degrees angle formed between nose and upper lip
41
angle formed between nose and upper lip
naso-labial angle
42
naso-labial angle affected by
LIP -- upper incisors position and inclination NOSE-- poition (can't be modified with ortho)
43
lip contour ideally
'S' shaped curl in upper lip ideally 3 mm in depth depends on incisor position and inclination lip thickness and tone provides an attractive and young appearance