Dental Panoramic Tomograph
Also written as: DPT — Dental Panoramic Tomograph
The full and formal name of the panoramic radiograph machine or the resulting image, capturing all teeth and supporting structures in a single extraoral film.
Full Definition
A dental panoramic tomograph (DPT) is an extraoral radiographic image that depicts all the teeth, jaws, temporomandibular joints, and adjacent structures on a single flat image using a rotating X-ray beam. In orthodontic practice it is used to assess tooth development, detect impacted teeth, and evaluate root morphology. The term 'DPT' is the preferred abbreviation in British orthodontic and dental radiography contexts, distinguishing it from the lay term 'OPG' (orthopantomogram), which is a brand-derived term. Editors should use 'DPT' in formal clinical documents unless house style specifies 'OPG'.
Usage
Usage note: 'DPT' is preferred over 'OPG' in formal NHS and academic writing in the UK; 'OPG' derives from a brand name (Orthopantomograph®) and should be avoided in formal clinical documentation unless mandated by house style.
In Context
- "A DPT was requested to assess the developing dentition and identify any unerupted canines." — Orthodontic referral letter
- "The dental panoramic tomograph revealed delayed eruption of the lower right second premolar." — Radiographic report