OPG
Pronunciation: OH-pee-jee
Also written as: OPG — Orthopantomogram
Abbreviation for 'orthopantomogram', a panoramic dental radiograph that captures a broad, single-image view of the entire dentition, jaws, and surrounding structures.
Full Definition
An OPG (also called a panoramic radiograph or 'panorex') is an extraoral X-ray in which the film or sensor rotates around the patient's head to produce a two-dimensional image of the full upper and lower jaws, all teeth, the temporomandibular joints, and adjacent bony structures. In dental documentation and radiology reports, 'OPG' is the standard abbreviated form in many countries, particularly in Australia, the UK, and Ireland, while 'panoramic radiograph' or 'panorex' may be preferred in US clinical records. Editors should note that 'OPG' is always written in uppercase and never expanded mid-sentence in clinical contexts once it has been introduced. It is distinct from the PA radiograph, which targets individual teeth rather than the entire arch.
Usage
Usage note: Use OPG consistently in Australian and UK dental documents; use 'panoramic radiograph' in US contexts unless house style specifies otherwise. Always uppercase.
In Context
- "An OPG was requested to assess third molar angulation prior to surgical planning." — Oral surgery referral letter
- "The treating dentist reviewed the OPG and identified significant generalised bone loss." — Case conference summary