Figure 1-35.Patient closing on wing.
5. Center the tube head cylinder on the wing of the
film packet. Be sure that the central X-ray beam passes
through the embrasures as shown in figure 1-36.
6. Make the exposure. After making the exposure,
put the exposed film in a clean paper cup and place in a
lead lined container or behind a protective screen. You
are now ready to take the radiograph on the opposite
side of the patient's mouth.
An occlusal examination is usually conducted
when fractures of the jaw or gross pathological
conditions are suspected. A typical occlusal
radiograph (fig. 1-37) shows a large area of the
maxillary or mandibular arch.
The occlusal film packet is shaped much like the
periapical packet, only larger. Unlike the periapical
Figure 1-36.Centering tube head cylinder.