10/29: Panoramic Positioning Issues Flashcards

1
Q
A

ghost of glasses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
A

ghost of earrings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
A

ghost of lead apron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
A

ghost of hairpins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
A

dentures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

when taking a pano, should they remove dental appliances such as dentures/RPD?

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are the 5 parts of proper positioning?

A

teeth and jaw are sharply depicted
slight curve to occlusal plane
no air space obstructing maxillary roots
equal magnification
no ghost image of cervical spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
A

to far forward

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what happens when you are too far forward?

A

cervical spine overlaps ramus
anterior teeth are small and narrow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what happens when you are too far back?

A

anterior teeth are widen
inferior turbinates and meati are across maxillary sinuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
A

too far back

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
A

too far back

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

this is when you have excessive curvature on the occlusal plane

A

chin down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
A

chin down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
A

chin up

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

this is when you have a flat occlusal plane, or reverse

17
Q

this is when you have unequal magnification of the left and right side

A

head turned

18
Q
A

head turned to right

19
Q
A

head turned left

20
Q

what happens when you are slumped?

A

cervical spine ghost is too opaque

21
Q
22
Q
A

tongue not on roof

23
Q
A

partial panoramic image

24
Q
A

patient moved

25
patient moved
26
what is the cause of wide anterior teeth?
too far back
27
what causes flat occlusal plane?
chin up
28
what causes ghost image of cervical spine?
slumped
29
what causes a double real image of the cervical spine?
too far forward
30
what is the distortion if teh teeth are located outside of the central plane towards the rotational center?
stretched wide in a horizontal direction
31
the hard palate is superimposed on the maxillary roots
chin up
32
what occurs when you are too far forward?
anterior teeth are narrow doubel cervical spine image
33
what occurs when you are too far back?
condyles are cut off inferior turbinate and meati are on maxillary sinus anterior teeth widened
34
the rami/condyles are tipped inward in
chin down
35
when is the hyoid superimposed on the mandible?
chin down
36
what occurs in chin down?
large occlusal curve hyoid bone superimposed on mandible condyles are close to or cut off rami/condyles are tipped inwards
37
what occurs in chin up?
flat occlusal or reversed rami/condyles tipped laterally hard palate superimposed on maxillary apices