Dry the film.
See paragraph 3-7 for additional information concerning the use of the
c. Viewing Procedure.
Mount in a suitable frame.
Label the mount for proper identification.
Section II. RADIOGRAPHIC PROCESSING FACILITIES AND MATERIALS
Precise methods in the processing of x-ray films are as important in attaining
good results, as is the use of precise exposure technique. Regardless of the method
(automatic or manual) used by the dental specialist, if proper processing procedures are
followed, quality radiographs will result.
a. Construction. Since x-ray films are more sensitive to light than most
photographic films, it is important to have a good darkroom. The room need not be
large, but it must be constructed so that no light can enter through cracks or crevices.
An entrance built in the form of a maze to keep out light is better than a door. If the
darkroom has a door, it should have an inside lock so that no one can accidentally enter
while films are being processed. The walls of the darkroom and the maze should be
painted black to absorb light. The ceiling may be painted white so that enough
illumination will be reflected when the correct type of safelight is used. The room should
be supplied with both hot and cold water. The water pipes should lead to a mixing valve
so the temperature of the flow can be regulated. Adequate ventilation must be
provided. This can be done by forcibly changing the air with a ventilator fan.
b. Cleanliness. Because of the extreme sensitivity of x-ray films, rigid
cleanliness must be observed when processing films. Clean all equipment and only use
equipment for their intended purposes. The dental specialist must not spill chemicals.
If chemicals are spilled, wipe up the spill immediately and wash the area with clear
water. Spilled chemicals that are not wiped up will evaporate and leave a precipitated
concentrate that contaminates films. Wash the thermometers and film holders
thoroughly before transferring them to either the developing or fixing solutions. Film
hangers require particular attention after films have been removed from them. If a
hanger is not washed properly, the fixing solution dries on it. Then, when new films are
placed on the hanger and immersed in the developing solution, the dried fixing solution
runs down onto the films and causes streaked or spotted radiographs. It also
contaminates the developing solution.