OPG Positioning errors Flashcards
1
Q
How will an OPG that is too far in appear?
A
- long and thin
- image looks squashed
- premolars overlap
- vertebrae overlap with the mandibular rami
2
Q
How does an OPG that is too far out appear?
A
- short and stout
- image looks stretched and wide
- condyles may be off sides
3
Q
How does an OPG appear then the patients chin is up?
A
- image looks uphappy
- hard palate obscures the maxillary incisor roots
- condyles may be off sides on the film
- upper incisor roots are blurred
4
Q
How does an OPG appear when the patients chin is down?
A
- image is smiling
- hyoid bone may be superimposed on the mandible
- lower incisor roots are blurred
5
Q
An object that is not in the focal trough will appear…
A
blurred
6
Q
An object that is outside of the focal trough will appear…
A
small
7
Q
An object that is insice of the focal trough will appear …
A
enlarged
