Figure 4-11. Maxillary bicuspid area.
4-12. MAXILLARY CUSPIDS
Adjust the head as described for radiographs of maxillary teeth. Place the film
packet in the mouth so that its long axis is vertical and its lower border is parallel to and
slightly below (approximately 1/8 inch) the incisal edges of the lateral incisor and cuspid
teeth. The anterior border of the film should lie lingual to the central incisor of the same
side. The upper anterior corner of the film may be contoured slightly to fit the curvature
of the maxillary arch. Adjust the cone to an average angulation of +45 degrees. Direct
the central ray straight at the cuspid at the level of the root and perpendicular to the
bisecting plane (see figure 4-12). Follow the manufacturer's instructions for exposure
Figure 4-12. Maxillary cuspid area.