Panoramic Radiograph
Pronunciation: or-tho-PAN-toh-moh-gram
Also written as: OPG — Orthopantomogram
A single extraoral X-ray image that provides a two-dimensional panoramic view of the entire upper and lower jaws, teeth, and surrounding structures.
Full Definition
The panoramic radiograph, commonly called an OPG (orthopantomogram) or DPT (dental panoramic tomograph), is a standard two-dimensional imaging modality used across dental disciplines and widely referenced in research publications dealing with bone level assessment, pathology screening, and tooth development studies. Because it is a tomographic technique, only a focal trough of structures is rendered in focus, limiting its use for precise linear measurements. Editors should note that 'OPG' and 'DPT' are both widely used but may reflect institutional preferences; the full term 'panoramic radiograph' is preferred for first mention in scholarly manuscripts. The term 'orthopantomogram' is a proprietary-origin term (Siemens) and should be used with care.
Usage
Usage note: Avoid exclusive use of 'OPG' without expansion, as this abbreviation is not universally adopted across all dental research journals. Clarify on first use which term/abbreviation the manuscript will use and apply it consistently.
In Context
- "Panoramic radiographs were obtained at baseline and at the 12-month follow-up to evaluate alveolar bone height." — Longitudinal study methods
- "The manuscript alternates between 'OPG' and 'DPT' without definition; standardize to 'panoramic radiograph' with the preferred abbreviation defined at first use." — Copy-editing instruction