An orthopantomogram is an X-ray image of your whole mouth, including your upper and lower jaw. and teeth. The X-ray machine moves around your head while taking the image. This provides a. complete ear to ear image of your mouth and teeth.

During an OPG the patient remains in a stationary position (seated or standing) while both the x-ray source and film rotate in combination around the patient. The x-ray source rotates from one side of the jaw, around the front of the patient, and then to the other side of the jaw. The film rotates opposite to the x-ray source behind the patient. It takes a few seconds during which the patient must remain completely still.

This technique creates a panoramic image the should include the lower limits of the mandible, the upper limits of the maxillary sinuses, and the mandibular condyles and temporomandibular joints laterally. Panoramic image limitations include inherent anatomy distortion, double images, ghost images and do not provide a spatial relationship between structures.

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