MAXILLARY BICUSPIDS

Adjust the head as described for radiographs of maxillary teeth. Place the film packet in the mouth so that its long axis is horizontal and its anterior border is lingual to the mesial surface of the cuspid. Have its lower border paralleled to, and slightly below, the occlusal surfaces of the teeth (approximately 1/4-inch). Adjust the cone to an average angulation of +30º. Direct the central ray straight through the interproximal spaces of the first and second bicuspids at the center of the film and perpendicular to the bisecting plane (see figure 4-11). Follow the manufacturer's instructions for all exposure times.