films, processing (2)

intraoral

film/sensor inside the patient’s mouth

bite wing

image shows the crowns of maxillary and mandibular

occlusal

lays flat; shows arch

periapical (PA)

area around the apex

extraoral

film/sensor outside the mouth, bigger picture, loses a bit of detail

50-70 degrees F

temp for proper storage of film; or simply room temp or colder

safelight

7 ½ inch red light bulb

safelight filter has to be … ft between working area and where the safelight is mounted

2-3

safelight filter: .. .. min exposure to safelight

automatic processing

simple way of processing dental film; about 4 minutes

80-82

automatic: chemicals are about ,,,,, degrees F

developer solutions

softens emulsion so everything can get to it; reduces exposed silver bromide crystals to metallic silver0

radiolucent parts

Developer turns any crystal exposed to x rays into metallic silver

fixer solution

removes any undeveloped crystal not turned into metallic silver. After, it rehardens the emulsion. Goes through water bath, removing chemicals. Heated dryer that finishes setting the emulsion and dries it.

developer solution

distinguishes between the exposed and unexposed silver halide crystals into black metallic silver and creates dark or black areas on a dental radiograph. At the same time, the unexposed crystals remain virtually unaffected by it 

fixer solution

removed the unexposed silver halide crystals and creates white or clear areas on the dental radiograph. Meanwhile, the metallic silver is not removed and remains on the film.