1. Good quality radiographs should have: 1.Image with optimum density &
contrast 2.Image with minimum distortion 3.Image with sharp borders &
maximum details.
Causes of Faulty radiograph: The majority of the errors may be as follows-
I. Light Radiograph VII. Yellow or Brown Stains
II. Dark Radiograph VIII. Blurring
III. Insufficient Contrast IX. Partial Images
IV. Film Fog X. Emulsion Peel
V. Dark spots or Lines XI. Dimensional Change
VI. Light Spots XII. Scratch film
LIGHT RADIOGRAPH
Processing Errors
*Underdevelopment
*Depleted Developer Sol
*Diluted Contaminated
Developer
*Excessive Fixation
Under Exposer
*Insufficient mA
*Insufficient kVp
*Insufficient time
*Film source distance
too great
*Reversed film in mouth
DARK RADIOGRAPH
Processing Errors
*Overdevelopment
*Developer concentration
too high
*Accidental exposure to light
*Improper safe light
Under Exposer
*Excessive mA
*Excessive kVp
*Excessive time
*Film source distance
too Short
INSUFFICIENT CONTRAST
*Underdevelopment
*Underexposure
*Excessive kVp
*Excessive film fog
FAULTY RADIOGRAPHS FILM FOG
*Improper safelighting
*Light leaks
*Overdevelopment
*Contaminated
solutions
*Deteriorated film
DARK SPOTS OR LINES
*Finger print
*Protective paper sticking
to film
*Excessive bending of film
*Excessive roller pressure
LIGHT SPOTS
*Film contaminated to
fixer before
processing
*Film contact with tank
during developing
the film
*Excessive bending
YELLOW OR BROWN STAINS
*Depleted developer
*Depleted fixer
*Insufficient washing
*Contaminated solution
BLURRING
*Improper
safelighting
*Light leaks
*Overdevelopment
*Contaminated
solutions
*Deteriorated film
CONE CUT
*Improper
placement of
film
*Misalignment of X-
ray tube
EMULSION PEEL
*Abrasion of image
during
processing
*Excessive time in
wash water
DIMENSIONAL CHANGE
*Elongation of
image
*Shortening of
image
SCRATCH FILM
*Elongation of image
*Shortening of image
SK AZIZ IKBAL
NORTH BENGAL DENTAL
COLLEGE AND HOSPITAL
