A bitewing radiograph is an intraoral device that demonstrates the crowns, necks and coronal thirds of the roots of both upper and lower teeth. The imaged person bites upon a tab or wing projecting from the center of the image-receptor packet.

See also Bisecting Angle Technique.

The bisecting angle technique (or bisect angle geometry) is used for radiographic examinations of the teeth. The central axis of the x-ray beam is positioned at right angles to a plane determined by bisecting the angle formed by the long axis of the teeth being imaged, and the plane in which the image receptor is positioned behind the teeth.

See also Bitewing Radiograph.