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 +45º. 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 times.