Panoramic Radiograph
Also written as: OPG — Orthopantomogram
A single extraoral dental X-ray that provides a broad, flat-plane image of the entire upper and lower jaws, teeth, and adjacent structures.
Full Definition
A panoramic radiograph (commonly called a 'OPG' or 'DPT' in clinical shorthand) is a tomographic dental X-ray producing a two-dimensional image of the maxilla, mandible, dentition, temporomandibular joints, maxillary sinuses, and surrounding structures on one film. It is an essential planning tool in oral surgery for assessing impacted teeth, pathological lesions, jaw fractures, and implant sites. Editors must recognise the multiple synonyms in circulation—'OPG' (orthopantomogram), 'DPT' (dental panoramic tomogram), 'OPT'—and ensure consistency within a document. 'Orthopantomogram' is the trademarked brand name that has become generic; academic style guides vary on whether to capitalise it.
Usage
Usage note: Standardise abbreviations within a document—choose one of OPG, OPT, or DPT and apply consistently. Do not confuse with a periapical radiograph (single tooth) or a cephalometric radiograph (lateral skull).
In Context
- "A panoramic radiograph (OPG) demonstrated a large dentigerous cyst associated with the unerupted lower-right third molar." — Radiology report
- "The author alternated between 'OPG' and 'DPT' throughout the manuscript; the editor standardised to 'OPG' on the journal's instruction." — Journal manuscript editing