DANB RHS Exam A+ Pass Verified
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
Federal Regulations- 1974: - Answer- 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: -
Answer- MN- mandatory every 2 years
Tube head or tube housing used to: - Answer- produce x-rays
Extension arm used to: (3) - Answer- suspend tubehead, house electrical wires, &
allows movement in all directions & positioning of the x-ray tubehead
Control panel used to: (3) - Answer- allows for regulation x-ray beam, control electrical
current for generation of X-rays, & house control buttons and settings
kvP: - Answer- 65-100 kVp range- peak of enegry
mA: - Answer- 7-15 range- amount
Exposure time: - Answer- 1/60th of a second- standard & 1/100th of a second- digital
Collimator: - Answer- lead diaphragm used to restrict the size of the x-ray beam (round,
rectangular, cone)
X-ray film holders: - Answer- stabe(styrofoam bite block, slimplest), XCP, Bite tab,
EEZE grip, etc.
Beam Alignment Device: - Answer- used to help the radiographer position the PID in
relationship to the tooth and film
X-ray: - Answer- beam of energy
Image: - Answer- picture or likeness of an object
Receptor: - Answer- something that responds to a stimulus
Film Compostion: (4) - Answer- film base, adhesive layer, film emulsion, protective layer
Film emulsion purpose & mixture: - Answer- to give film greater sensitivity to x-radiation,
homogeneous misture of gelatin & silver halide crystals
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
Federal Regulations- 1974: - Answer- 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: -
Answer- MN- mandatory every 2 years
Tube head or tube housing used to: - Answer- produce x-rays
Extension arm used to: (3) - Answer- suspend tubehead, house electrical wires, &
allows movement in all directions & positioning of the x-ray tubehead
Control panel used to: (3) - Answer- allows for regulation x-ray beam, control electrical
current for generation of X-rays, & house control buttons and settings
kvP: - Answer- 65-100 kVp range- peak of enegry
mA: - Answer- 7-15 range- amount
Exposure time: - Answer- 1/60th of a second- standard & 1/100th of a second- digital
Collimator: - Answer- lead diaphragm used to restrict the size of the x-ray beam (round,
rectangular, cone)
X-ray film holders: - Answer- stabe(styrofoam bite block, slimplest), XCP, Bite tab,
EEZE grip, etc.
Beam Alignment Device: - Answer- used to help the radiographer position the PID in
relationship to the tooth and film
X-ray: - Answer- beam of energy
Image: - Answer- picture or likeness of an object
Receptor: - Answer- something that responds to a stimulus
Film Compostion: (4) - Answer- film base, adhesive layer, film emulsion, protective layer
Film emulsion purpose & mixture: - Answer- to give film greater sensitivity to x-radiation,
homogeneous misture of gelatin & silver halide crystals
