7-8

• This stage should be performed in a controlled, standardized, condition with careful attention to detail

  FILM PROCESSING
• Convert latent image to radiographic image

  FILM PROCESSING
• The sensitive site in the silver halide structure is

  NEUTRAL
• Indicates the amount of radiation required to produce a radiograph of standard density

  FILM SPEED
• Film with paper tab projection

  BITEWING FILM
• Is to remove the underdeveloped silver halide crystals from the emulsion

  FIXER SOLUTION
• Irregularities in the chemical structure of the silver halide crystals is due to the presence of

  SULFUR COMPOUNDS
• REQUIREMENT IN THE DARK ROOM

  No ventilation (FALSE)

  Safelight - 8 ft (FALSE 4 ft)

  Absolute light tightness (TRUE)

  Adequate washing facilities (TRUE)
• Disadvantage of automatic film processing

  Poor overall image quality (self developing film)

  Relatively expensive (TRUE)

  The need for dark room is often eliminated (ADVANTAGE)

  No rinsing in between developer and fixer (ADVANTAGE)
• When developed...

  Dense structure results in radiopaque (light) image;

  Gingiva results in radiolucent (dark) image
• Distance of safe light from the developing solution

  4 ft
• Composition of an emulsion in an x-ray film

  SILVER HALIDE CRYSTALS AND GELATIN MATRIX
• The film is immersed in developer and agitated for about

  5 minutes at 20 degrees C
• Second stage of film processing is washing which

  Remove residual developer solution
• Helps bring out the image during film processing

  PHENIDONE
• Film processing starts from

  Formation of latent image
• Intensifying screens are used in combination with almost all types of extraoral projections

  FALSE
• Presence of _ intensifies the effect of x-rays on extraoral film

  PHOSPHOR
• Radiographic error when the embossed pattern of the lead film is seen

  HERRINGBONE PATTERN
• Location of the raised identification dot on the x-ray film

  TUBE SIDE
• Made out of flexible piece of polyester pieces

  FILM BASE
• Purpose of the thin sheet of lead foil

  Shield from secondary radiation
• The second principle component in an x-ray film

  FILM EMULSION
• The image receptor generally employed in dental radiography is radiographic image

  FALSE