DANB RHS Comprehensive
Questions (Frequently Tested)
with Verified Answers Graded
A+
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
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 present, &
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 disease &
lesions for diagnostic purposes
Federal Regulations- 1968: - Answer: Radiation Control for Health & Safety Act: Standardize
performance of x-ray equipment
Questions (Frequently Tested)
with Verified Answers Graded
A+
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
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 present, &
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 disease &
lesions for diagnostic purposes
Federal Regulations- 1968: - Answer: Radiation Control for Health & Safety Act: Standardize
performance of x-ray equipment
