Orthopantomogram (OPG)

An Orthopantomogram (OPG) is a type of x-ray that examines the lower face, teeth, jaw joints and maxillary sinuses. The teeth are displayed in a long flat line. This x-ray is useful to demonstrate the number of teeth as well as their position and growth, and is particularly useful to assess teeth that have not yet surfaced.

Preparation

No special preparation is required. Patients will be asked to remove jewellery and metallic items from the head and neck region.

During your examination

During the examination, the arm of the machine will rotate slowly around the patient’s head, but will not come into contact with the patient. The patient will be instructed to bite on a small plastic mouthpiece attached to the machine, which keeps the top and bottom teeth separated and helps position the mouth properly in the machine. It is important that patients remain very still during the scan.

After your examination

After your examination, you will be able to resume normal activities.