DENTAL RADIOGRAPHY REVIEW
EXAM | 254 ACTUAL QUESTIONS
AND ANSWERS VERIFIED BY
EXPERT 100% CORRECT | UPDATED
Question : All the the following tissues are radiopaque
EXCEPT:
a.) Alveolar bone b.) enamel c.) pulp chamber and canals.d.) cortical plate.
Correct answer: c.) pulp chamber and canals.
Question : Which of the following appears radiolucent?
a.) caries b.) calculus c.) torus d.) root tips
Correct answer: a.) Caries
Question : For maximum penetration of x-rays, which of the
following combination would you select?a.) 90 kVp and 10 mA b.) 65 kVp and 10 mA c.) 70 kVp and 90 mA d.) 10 kVp and 65 mA
Correct answer: a.) 90 kVp and 10 mA
Side Note:
Penetration = kVp.Maximum penetration out of the choices would be 90 kVp.
Question : What are the cells most sensitive to ionizing
chambers?
Correct answer: Reproductive.
Question : What is the best type of x-ray to penetrate body
tissue?
Correct answer: Short wavelength, high frequency, and hard
rays.
Question : Is an exposed x-ray film packet covered with a
plastic barrier envelope considered to be contaminated?
Correct answer: Yes.
Question : Before seating the dental patent it is necessary to
cover which items with disposable barriers?
Correct answer: Tube head, head rest, controls, exposure
button. (The stuff you're gonna touch after you made contact with the mouth).
Question : The dental assistant must utilize which item(s) of
personal protective equipment (PPE) when exposing films?
Correct answer: Full PPE's. Gloves, mask, gown, goggles.
Question : Proper collimation for the film size and focal-film
distance will have what effect?
Correct answer: Reduce radiation to the patient.
Question : Where can information and instructions for proper
disposal of x-ray processing solutions be found?
Correct answer: SDS (Formerly known as MSDS) -
(Material) Safety Data Sheet.
Question : What are the x-rays at the center of the primary
beam called?
Correct answer: Central Ray.
Question : A test for quality control relative to manual
processing may be accomplished utilizing what?
Correct answer: Step wedge.
Question : X-ray processing tanks are considered secondary
containers, and according to OSHA (Occupational Safety and Health Administration) standards what must be done?
Correct answer: Must be labeled. All information must be on
the secondary label (such as the hazards).