Panoramic imaging
Panoramic views show broad anatomy but have distortion and unequal resolution. Check the whole film systematically.
Understand
Panoramic imaging gives broad jaw coverage with magnification, distortion and a focal trough. Positioning errors can obscure or exaggerate anatomy.
Assess
Check patient position and image quality, then read systematically from condyles and sinuses through jaws and dentition. Correlate incidental findings clinically.
Apply
Use targeted intraoral imaging or other modalities when finer detail is needed. Do not infer precise linear dimensions from an uncalibrated panoramic image.
Key distinctions
Panoramic imaging is particularly sensitive to patient position in the focal trough. Air space, jewellery and ghost images can create artefacts. Review condyles, sinuses, borders and jaws before focusing on the tooth of interest. A focal finding may require an intraoral image or other targeted study because panoramic spatial resolution is limited.
Think through a case
A panoramic film makes one ramus appear wider because the patient's head was rotated. Check positioning before diagnosing asymmetry.
The distinction to remember
Do not measure exact implant space or root length directly from a distorted panoramic image without appropriate calibration.
Test your recall
Why might a small early carious lesion be missed on a panoramic image?
Show answer
Its spatial resolution is lower than a suitable intraoral view.