DANB RHS Exam | Questions And Answers Latest {2024- 2025} A+ Graded | 100%
Verified
Unexposed Film Appearance: - clear film w/ a bluish tinge
Film Exposed to White Light Appearance: - film appears black
Over Exposed Film Appearance: - film appears dark
Under Exposed Film: - film appears light
Premolar Bite-Wing must include: - Distal 1/2 canine, all premolars present & 1st molars of the MX &
MD teeth, & crestal bone
Incorrect Horizontal Angulation Appearance: - overlapped contact areas appear on the film
Cone-cut Appearance: - a clear, unexposed area on the film
Film Bending Appearance: - film appears stretched & distorted (all or portion of film)
Film Creasing Appearance: - a thin radiolucent (dark) line appears on the film (usually straight)
Phalangioma Appearance: - patient's finger appears on the film image
Double Exposure Appearance: - two (double) images are superimpose on top of each other
Patient movement Appearance: - film image is distorted or blurred
, Incorrect Vertical Angulation Appearance: - short teeth w/ blunted roots appear on the film
(foreshortened)
Dropped Film Corner Appearance: - the occlusal plane appears tipped or tilted
Incorrect Film Placement Appearance: - no apices on the film
Molar Bite-Wing must include: - Distal 1/2 of second premolar, all molars present, & both MX & MD
molars, & crestal bone
Reversed Film Appearance: - light images w/ a herringbone pattern appear on the film
X-ray Machine Purpose: (2) - 1- produce quality radiographs, 2- detection of disease & lesions for
diagnostic purposes
Federal Regulations- 1968: - Radiation Control for Health & Safety Act: Standardize performance of x-ray
equipment
Federal Regulations- 1974: - US FDA standardized all manufacturing of radiographic dental equipment
(all machines must meet this)
State Gov't Regulations determine when & how dental x-ray equipment is monitored: - MN- mandatory
every 2 years
Tube head or tube housing used to: - produce x-rays
Extension arm used to: (3) - suspend tubehead, house electrical wires, & allows movement in all
directions & positioning of the x-ray tubehead
Control panel used to: (3) - allows for regulation x-ray beam, control electrical current for generation of
X-rays, & house control buttons and settings
Verified
Unexposed Film Appearance: - clear film w/ a bluish tinge
Film Exposed to White Light Appearance: - film appears black
Over Exposed Film Appearance: - film appears dark
Under Exposed Film: - film appears light
Premolar Bite-Wing must include: - Distal 1/2 canine, all premolars present & 1st molars of the MX &
MD teeth, & crestal bone
Incorrect Horizontal Angulation Appearance: - overlapped contact areas appear on the film
Cone-cut Appearance: - a clear, unexposed area on the film
Film Bending Appearance: - film appears stretched & distorted (all or portion of film)
Film Creasing Appearance: - a thin radiolucent (dark) line appears on the film (usually straight)
Phalangioma Appearance: - patient's finger appears on the film image
Double Exposure Appearance: - two (double) images are superimpose on top of each other
Patient movement Appearance: - film image is distorted or blurred
, Incorrect Vertical Angulation Appearance: - short teeth w/ blunted roots appear on the film
(foreshortened)
Dropped Film Corner Appearance: - the occlusal plane appears tipped or tilted
Incorrect Film Placement Appearance: - no apices on the film
Molar Bite-Wing must include: - Distal 1/2 of second premolar, all molars present, & both MX & MD
molars, & crestal bone
Reversed Film Appearance: - light images w/ a herringbone pattern appear on the film
X-ray Machine Purpose: (2) - 1- produce quality radiographs, 2- detection of disease & lesions for
diagnostic purposes
Federal Regulations- 1968: - Radiation Control for Health & Safety Act: Standardize performance of x-ray
equipment
Federal Regulations- 1974: - US FDA standardized all manufacturing of radiographic dental equipment
(all machines must meet this)
State Gov't Regulations determine when & how dental x-ray equipment is monitored: - MN- mandatory
every 2 years
Tube head or tube housing used to: - produce x-rays
Extension arm used to: (3) - suspend tubehead, house electrical wires, & allows movement in all
directions & positioning of the x-ray tubehead
Control panel used to: (3) - allows for regulation x-ray beam, control electrical current for generation of
X-rays, & house control buttons and settings
