Mandible - Orthopantomogram (OPG)
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Radiographic Positioning
Adult | Other related pages of interest |
Name of projection | Mandible - Orthopantomogram |
Area Covered | Single panaoramic image of the teeth, mandible, TMJ's, nasal fossae, maxillary sinus and zygomatic arch |
Pathology shown | Fractures of mandible, TMJ pathology, caries, tooth alignment |
Radiographic Anatomy | Mandible Radiographic Anatomy |
IR Size & Orientation | 25 x 30cm Landscape |
Film / Screen Combination | Regular (CR and DR as recommended by manufacturer) |
Bucky / Grid | No |
Filter | No |
Exposure | |
FFD / SID | Fixed (per manufacturers specification) |
Central Ray | Fixed and directed slightly cephalic to project anatomic structures at the same height on top of one another |
Collimation | A narrow vertical slit diaphragm is attached to the X-ray tube which provides the collimation |
Markers | Often built into the cassette (check orientation of cassette before inserting into OPG machine) |
Shielding | Lead Apron (check your department's policy guidelines) |
Respiration | Normal breathing |
Positioning |
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Critique | Positioning |
Special Notes |