radiograph until the incisal edges of the teeth point
down. With the back of the mount toward you, slide the
radiograph into the incisor slot. When the radiograph is
properly mounted, the side with the raised dimple will
face you, and the incisal edges pointing down toward
the center of the mount.
5. Work outward from the central incisor slot,
inserting the rest of the maxillary radiographs in the
following order: cuspid areas, bicuspid areas, and molar
6. Insert the mandibular radiographs. Start with the
radiographs of the central incisor areas and work
outward. As before, the raised dots will be toward you
and the incisal/occlusal surfaces of the teeth should be
pointing upward toward the center of the mount.
When you have inserted all of the radiographs,
hold the mounted radiographs up to the viewer. Double
check to see that each radiograph is mounted correctly.
The panoramic X-ray machine is used to produce
an extraoral radiograph that shows both dental arches
and the temporomandibular joints (fig. 1-61). The
radiograph is made by rotating the tube head and film
around the patient while the patient remains stationary.
Because of the different manufacturers and models of
panoramic X-ray machines used in the Navy, this
operation and maintenance will vary. Always refer to
manufacturer's instruction manual prior to use.
The panoramic X-ray machine and control panel
are shown in figures 1-62 and 1-63. Refer to these
figures throughout the following discussion. You must
be thoroughly familiar with the components shown
before operating the machine.
The operational check for the panoramic X-ray
machine is accomplished without a patient. To
perform the operational readiness check, perform the
following procedures as follows:
1. Turn on the pilot switch; the pilot light will
2. Set the kVp selector switch to the desired
voltage. Adjust the kVp meter as a reference for the
desired kVp setting.
3. Select the mA settings, to be used. Adjust them
according to the manufacturer's instructions. When you
find the mA and kVp settings that give the best results,
enter them on a technique values chart. Remember each
manufacturer's film is different, so follow the
Figure 1-61.Typical panoramic radiograph.