Panoramic Positioning Errors Flashcards
The following need to be \_\_\_\_ for pano radiography: Dental appliances Earrings Necklaces Hairpins Glasses
Removed
______ pano error:
• Anterior teeth narrowed and blurred.
• Cervical spine superimposed on ramus.
(double real image of cervical spine).
Too far forward
______ pano error:
• Anterior teeth widened and blurred.
• Inferior turbinates and meati spread across maxillary sinuses.
• Condyles close to or cut off side of image.
Too far back
______ pano error:
• Excessive curvature of occlusal plane.
• Roots of mandibular anterior teeth are blurred.
• Rami/condyles tipped inward.
• Condyles close to or cut off top of image.
• Hyoid bone superimposed on mandible.
Chin Down
______ pano error:
• Flat occlusal plane or reverse curvature.
• Roots of maxillary anterior teeth are blurred.
• Rami/condyles tipped laterally.
• Condyles close to or cut off side of image.
• Hard palate superimposed on maxillary apices.
Chin up
______ pano error:
• Unequal magnification of left and right side (teeth, ramus)
• Increased blurring and overlapping of contacts on one side.
Head turned
If the patient is ______, there will be a prominent ghost image of cervical spine
Slumped
If the patient’s __________, the palatoglossal air space shows up on the pano causing less acuity on the apices of max teeth
Tongue not on palate
______ pano error:
Too far forward
______ pano error:
Too far forward
______ pano error:
Too far back
______ pano error:
Too far back
______ pano error:
Too far back
______ pano error:
Chin down
______ pano error:
Chin down
______ pano error:
Chin down and Too far forward?
______ pano error:
Chin up
______ pano error:
Chin up
______ pano error:
Head turned
______ pano error:
Head turned
______ pano error:
Head turned
______ pano error:
Slumped
______ pano error:
Slumped
______ pano error:
Slumped
______ pano error:
Tongue not on roof of mouth
______ pano error:
Tongue not on roof of mouth
______ pano error:
Not on roof of mouth
- Teeth and jaws sharply depicted.
- Slight curvature of occlusal plane.
- Equal magnification on left and right side.
- No air space obstructing view of maxillary roots.
- No ghost image of cervical spine in midline.
Proper position
______ pano error:
Lead apron artifact
______ pano error:
Lead apron error and slumped patient
______ pano error:
Partial panoramic image
______ pano error:
Patient motion
______ pano error:
Patient movement
If the patient’s head is turned to the left, which side of the dentition will be magnified?
Left
iF the jaw is shifted to the left of midline, the left posterior teeth will be ________ on the pano
Narrower
iF the jaw is shifted to the left of midline, the right posterior teeth will be ________ on the pano
Wider
If the patient’s head is turned to the left, which side of the dentition will be smaller?
Right side