Unexposed Film Appearance: - ANSWER clear film w/ a bluish tinge
Film Exposed to White Light Appearance: - ANSWER film appears black
Over Exposed Film Appearance: - ANSWER film appears dark
Under Exposed Film: - ANSWER film appears light
Premolar Bite-Wing must include: - ANSWER Distal 1/2 canine, all premolars present &
1st molars of the MX & MD teeth, & crestal bone
Incorrect Horizontal Angulation Appearance: - ANSWER overlapped contact areas appear
on the film
Cone-cut Appearance: - ANSWER a clear, unexposed area on the film
Film Bending Appearance: - ANSWER film appears stretched & distorted (all or portion of
film)
Film Creasing Appearance: - ANSWER a thin radiolucent (dark) line appears on the film
(usually straight)
Phalangioma Appearance: - ANSWER patient's finger appears on the film image
1
, Double Exposure Appearance: - ANSWER two (double) images are superimpose on top of
each other
Patient movement Appearance: - ANSWER film image is distorted or blurred
Incorrect Vertical Angulation Appearance: - ANSWER short teeth w/ blunted roots appear
on the film (foreshortened)
Dropped Film Corner Appearance: - ANSWER the occlusal plane appears tipped or tilted
Incorrect Film Placement Appearance: - ANSWER no apices on the film
Molar Bite-Wing must include: - ANSWER Distal 1/2 of second premolar, all molars pre-
sent, & both MX & MD molars, & crestal bone
Reversed Film Appearance: - ANSWER light images w/ a herringbone pattern appear on
the film
X-ray Machine Purpose: (2) - ANSWER 1- produce quality radiographs, 2- detection of dis-
ease & lesions for diagnostic purposes
Federal Regulations- 1968: - ANSWER Radiation Control for Health & Safety Act: Stand-
ardize performance of x-ray equipment
Federal Regulations- 1974: - ANSWER US FDA standardized all manufacturing of radio-
graphic dental equipment (all machines must meet this)
State Gov't Regulations determine when & how dental x-ray equipment is monitored: - AN-
SWER MN- mandatory every 2 years
2
Film Exposed to White Light Appearance: - ANSWER film appears black
Over Exposed Film Appearance: - ANSWER film appears dark
Under Exposed Film: - ANSWER film appears light
Premolar Bite-Wing must include: - ANSWER Distal 1/2 canine, all premolars present &
1st molars of the MX & MD teeth, & crestal bone
Incorrect Horizontal Angulation Appearance: - ANSWER overlapped contact areas appear
on the film
Cone-cut Appearance: - ANSWER a clear, unexposed area on the film
Film Bending Appearance: - ANSWER film appears stretched & distorted (all or portion of
film)
Film Creasing Appearance: - ANSWER a thin radiolucent (dark) line appears on the film
(usually straight)
Phalangioma Appearance: - ANSWER patient's finger appears on the film image
1
, Double Exposure Appearance: - ANSWER two (double) images are superimpose on top of
each other
Patient movement Appearance: - ANSWER film image is distorted or blurred
Incorrect Vertical Angulation Appearance: - ANSWER short teeth w/ blunted roots appear
on the film (foreshortened)
Dropped Film Corner Appearance: - ANSWER the occlusal plane appears tipped or tilted
Incorrect Film Placement Appearance: - ANSWER no apices on the film
Molar Bite-Wing must include: - ANSWER Distal 1/2 of second premolar, all molars pre-
sent, & both MX & MD molars, & crestal bone
Reversed Film Appearance: - ANSWER light images w/ a herringbone pattern appear on
the film
X-ray Machine Purpose: (2) - ANSWER 1- produce quality radiographs, 2- detection of dis-
ease & lesions for diagnostic purposes
Federal Regulations- 1968: - ANSWER Radiation Control for Health & Safety Act: Stand-
ardize performance of x-ray equipment
Federal Regulations- 1974: - ANSWER US FDA standardized all manufacturing of radio-
graphic dental equipment (all machines must meet this)
State Gov't Regulations determine when & how dental x-ray equipment is monitored: - AN-
SWER MN- mandatory every 2 years
2
