Both parts of the statement are true.
Step-by-step explanation:
Dental Radiography has a potential danger of cross-contamination in the equipment, environmental surfaces, personnel involved, and to the patient when contact with saliva, blood, or pus; if aseptic guidelines are not strictly followed. The microbes can stay on the inert radiographic equipment surfaces for hours together after the exposure.
According to the infection control guidelines in dental healthcare practices and dental radiography, proper aseptic measures should be taken before, during and after taking an oral x-ray.
Disposable barrier envelopes to hold the x-ray film is the best technique to maintain operatory asepsis and overall hygienic workflow. These reduce cleaning time and chemical exposure for cleaning the equipment after imaging.
The film packets inside the envelope will not be contaminated and hence clean dry hands without gloves can be used to process the film. However, if contaminated gloved procedures must be followed.