Figure 1-57.Desk mount film viewer.
Figure 1-58 shows a serial mount for inter-proximal
(bite-wing) radiographs. The mount contains slots for
mounting five pairs of interpromixal radiographs for a
patient taken at different times and mounted in
chronological order. Serial mounting enables the
dental officer to compare radiographs taken at
different time intervals to detect changes in the
patient's oral structures.
The front of the mount contains spaces for the
patient's name and social security number, mount
number, and the date of each exposure. Fill in this
information whenever you start a new mount. After
you have completed the necessary information on the
front side, turn the mount over and lay it face down on a
Place the radiographs on a flat, dry surface with the
convex surface of the identifying "dimple" toward
the observer. Pick up a radiograph by the edges. Hold it
up to the, film viewer. The line representing the
occlusal surface of the bicuspids and molars should
gradually curve upward, forming one-half of a smile. If
the line curves upward on the right, slide the
radiograph into the right-hand slot on the back of the
mount with the upward curve toward the outside of the
mount. Keep the raised dimple facing you. If the line
curves upward on the left, slide the radiograph into the
left-hand slot. If both radiographs are mounted
correctly, they will appear as shown in figure 1-58,
forming a complete smile. Each time an additional pair
of inter-proximal radiographs is mounted, enter the date
on the line beneath the mounting slots.
Figure 1-58.Interproximal (bitewing) serial mount.