Errors

Question 1

Known as: collimation cut off x-ray beam is not centered on the film on exposed area on the film

Answer 1

Cone cutting

Question 2

Film is placed in the mouth backwards. The x-ray hit the lead foil first and leaves a herringbone pattern

Answer 2

Reversed film/ Herringbone pattern

Question 3

Whole tooth does not show on the film
Apex and top of crown is cut off
Teeth open during bitewing

Answer 3

Incorrect / Poor film placement

Question 4

Central ray is not parallel to the interproximal surfaces

• Central ray is not perpendicular to the teeth and the film
• Poor angulation

Answer 4

Horizontal overlapping

Question 5

Caused by too much finger pressure

- Roots appear long and bend/go off film

Answer 5

Excessive bending

Question 6

Using the same film twice

Answer 6

Double exposure

Question 7

Patient/film or tube head move during exposure

Answer 7

Blurred image

Question 8

Failure to remove full or partial denture or jewelry before exposure

Answer 8

Super imposition

Question 9

Teeth appear long because vertical angle was too low

Answer 9

Elongation

Question 10

Teeth appear sure because vertical angle was too high

Answer 10

Foreshortening

Question 11

Light film caused by underexposure under development or cold solution
• not enough KVP
• check MA, time and KVP

Answer 11

Low density film

Question 12

Dark film caused by over exposure over development or hot solution

Answer 12

High Density film

Question 13

Film has a great appearance like looking through fog
 •Light leakage in dark room
 •Improper safe lighting
 •Improper storage
 •Secondary radiation exposure
•Using an outdated film

Answer 13

Fogged film

Question 14

Film not fully immersed in developer

Answer 14

Developer Cut-off/ Partial Emersion

Question 15

• No radiation exposure
• Over processed
• Left overnight

Answer 15

Clear or blank film

Question 16

Dirty work surface in dark room or insufficient rinsing of film

Answer 16

Stained Film - brownish yellow

Question 17

Film was not adequately fixed

Answer 17

Discolored film - brown or gray color

Question 18

Films cling together while dying and emotion is pulled off film when separating them
• GELATIN HAS NOT DRIED

Answer 18

Turn emulsion

Question 19

Scratches on film while film is wet

Answer 19

Scratched emulsion

Question 20

Black marks from touching film with fluoride (fingerprints)

Answer 20

Fluoride artifacts

Question 21

Cracking of the emulsion do to varying temperatures of processing solution
• web like appearance

Answer 21

Reticulation

Question 22

White spots caused by air bubbles clinging to film while processing solution
• when film is not shaken vigorously after being submerged in solution

Answer 22

Air bubbles

Question 23

Caused by opening film packet to forcefully or removing extra Oreo found to forcefully

Answer 23

Static electricity

Question 24

Entire film or one area is black caused by film being exposed to white late

Answer 24

Black film

Question 25

Film comes in contact with fixer before being processed

Answer 25

White streaks/spots

Question 26

Film comes in contact with developer before being processed

Answer 26

Black streaks/spots

Question 27

Black marks caused by bending or crimping film after exposure

Answer 27

Plus density crimp marks

Question 28

White marsh caused by bending or crimping film before exposure

Answer 28

Minus density crimp marks

Question 29

Leave hands baffle till film drops

Answer 29

AUTOMATIC PROCESSING ERRORS | Daylight loaders : light leaks

Question 30

Rollers not cleaned periodically

Answer 30

AUTOMATIC PROCESSING ERRORS | Daylight loaders : dirty rollers

Question 31

Two films and one slot | •10 second so they don't touch

Answer 31

AUTOMATIC PROCESSING ERRORS | Overlap films