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Dental Radiography Review Exam: Multiple Choice Questions and Answers, Exams of Nursing

Concorde Career Colleges IncNursing

A comprehensive review of dental radiography concepts through a series of multiple-choice questions and answers. It covers essential topics such as radiation safety, film processing, radiographic anatomy, and interpretation. The questions are designed to test understanding of key principles and procedures in dental radiography.

Typology: Exams

2024/2025

Available from 03/06/2025

Tutorhaven
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Dental Radiography Review Exam
1. The most sensitive cells to ionizing radiation are
a.
bone
b.
muscle
c.
nerve
d.
reproductive <Answer> d. reproductive
2. The best type of x-ray to penetrate body tissue is
a.
low frequencies
b.
high frequencies, short wavelength
c.
long wavelength
d.
soft rays, long wavelength <Answer> b. high frequencies, short wavelength
3. Before seating the dental patient, it is necessary to cover which of the
following items with disposable plastic wrap?
a.
X-ray exposure control panel
b.
Lead apron
c.
X-ray film holding devices
d.
Operator film badge <Answer> a. x-ray exposure control panel
4. Milliamperage controls
a.
The speed with which electrons move from cathode to anode
b.
Cooling of the anode
c.
Heating of the anode
d.
Heating of the cathode <Answer> d. heating of the cathode
pf3
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pfd
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Download Dental Radiography Review Exam: Multiple Choice Questions and Answers and more Exams Nursing in PDF only on Docsity!

Dental Radiography Review Exam

  1. The most sensitive cells to ionizing radiation are a. bone b. muscle c. nerve d. reproductive d. reproductive
  2. The best type of x-ray to penetrate body tissue is a. low frequencies b. high frequencies, short wavelength c. long wavelength d. soft rays, long wavelength b. high frequencies, short wavelength
  3. Before seating the dental patient, it is necessary to cover which of the following items with disposable plastic wrap? a. X-ray exposure control panel b. Lead apron c. X-ray film holding devices d. Operator film badge a. x-ray exposure control panel
  4. Milliamperage controls a. The speed with which electrons move from cathode to anode b. Cooling of the anode c. Heating of the anode d. Heating of the cathode d. heating of the cathode
  1. The dental assistant must utilize which of the following personal protective equipment (PPE) when exposing films? a. Safety goggles b. Gloves c. Chin-length face shield d. Tinted lenses b. gloves
  2. The lead diaphragm (collimator) determines the size and shape of the a. electron cloud b. film used c. x-ray beam d. filament c. x-ray beam

a. test tube b. darkroom safelight c. water thermometer d. stepwedge d. step wedge

  1. Filtration of the x-ray beam protects the patient by a. eliminating all radiation from the x-ray head b. eliminating weak wavelength x-rays from the x-ray beam c. eliminating short wavelength x-rays from the x-ray beam d. decreasing exposure time b. eliminating weak wavelengths x- rays from the x-ray beam
  1. Information and instructions for proper disposal of x-ray processing solu- tions may be found in the a. Darkroom b. Dental laboratory c. Product material safety data sheet (MSDS) d. Office exposure control plan c. product material safety data sheet (MSDS)
  2. Scatter radiation is a type of a. secondary radiation b. primary radiation c. stray radiation d. filtered radiation a. secondary radiation
  3. The quality, or penetrating power, of secondary radiation is a. more than that of primary radiation b. less than that of primary radiation c. the same as that of primary radiation d. unrelated to that of primary radiation b. less than that of primary radiation
  4. The time period between the exposure to ionizing radiation and visible tissue damage is the a. Short term period b. Acute effect period c. Latent period
  1. A technique used to measure the operator's exposure to radiation is a. To check the color of the operator's fingernails b. For the operator to wear a radiation film badge c. To multiply the number of films the operators has exposed by 0.1 rem d. To count the number of full mouth x-ray series taken b. for the operator to wear a radiation film badge
  2. Accumulated radiation dosage for those who work with radiation may not exceed a. 0-1 rem/year b. 3 rems/year c. 4 rems/year d. 5 rems/year d. 5 rems/ year
  3. To avoid exposure to secondary radiation, the operator should stand a. At least 6' from the x-ray head b. 2' to the right of the primary beam c. Any distance in back of the x-ray head d. 4" in front of the patient a. at least 6' from the x-ray head
  4. The most effective way to reduce gonadal exposure from x-rays is to a. Increase the kVp b. Use a lead lap apron c. Increase vertical angulation d. Use proper collimation b. use a lead lap apron
  5. After each use, the lead lap apron must be

a. Stored in the darkroom b. Folded neatly and stored in the operatory c. Draped over a support rod unfolded d. Discarded for appropriate infection control c. draped over a support rad unfolded

  1. The best technique for reducing the radiation exposure to both patient and operator is the use of a. An automatic timer b. Fast film
  1. The detection of interproximal caries is seen best with a (an) a. Occlusal film b. Panorex film c. Bite-wing film d. Lateral head plate c. bite-wing film
  2. Which extraoral film is used to visualize the sinus? a. Water's film b. Lateral skull film c. Occlusal film d. Posterior-anterior film a. water's film
  1. How long should x-ray films be kept by the dentist along with other records? a. 1 yr b. 2 yr c. 5 yr d. Indefinitely d. indefinitely
  2. The best place to store unexposed x-ray film is in a a. Lead container b. Puncture resistant sealed container c. Darkroom d. Warm area protected from stray radiation a. lead container
  3. The periapical film reveals a. The entire jaw b. Upper and lower teeth in the same film c. Interproximal caries d. The entire tooth, including the apex d. the entire tooth, including the apex
  4. The principle used in panoramic radiography is a. Long cone paralleling b. Laminography c. Horizontal curvature d. Tomography d. tomography
  5. A material of substance that does not stop or absorb x-rays and appears
  1. All of the tissues listed are radiopaque EXCEPT the a. Enamel b. Cortical plate c. Pulp chamber d. Alveolar bone c. pulp chamber
  2. Which of these appears radiolucent? a. Caries b. Calculus c. Torus d. Root tips a. caries
  3. What is the name of the diagonal radiopaque line visible at the lower part of the roots of the mandibular molars? a. Mandibular canal b. External oblique ridge c. Inferior border of the mandible d. Internal oblique line d. internal oblique line
  4. What is the small circular radiolucency near the roots of the mandibular premolars called? a. Lingual foramen b. Mental foramen c. Mandibular foramen d. Incisive foramen b. mental foramen
  5. What term describes the u-shaped radiopaque structure often seen in the

maxillary molar films? a. Hamulus b. Tuberosity c. Zygomatic Process d. Coronoid Process c. zygomatic process

  1. What is the thin radiolucent band between the maxillary central incisors called? a. Median palatine suture b. Nasal septum

b. Mental ridge c. Symphysis d. Lamina dura a. genial tubercles

  1. What is the basic principle of the bisecting the angle technique? a. The central ray must be directed at right angle to the tooth b. The central ray must be directed at right angles to the film c. The central ray must be directed at right angles to an imaginary line that bisects the angle formed by the long axis of the tooth and the plane of the film

d. The central ray must be directed at a 45 º angle to the embrasures c. the central ray must be directed at right angles to an imaginary line that bisects the angle formed by the long axis of the tooth and the plane of the film

  1. All of the following are basic principles of the paralleling technique EX- CEPT a. The film must be parallel to the long axis of the tooth b. An 8" short cone must be used c. The source of the x-ray must be directed perpendicularly to tooth and film d. A 16" extension or long cone must be used b. an 8" short cone must be used
  2. The ala-tragus (Frankfort plane) line is parallel to the floor when taking a. Mandibular occlusal films b. Mandibular periapical films c. A panorex d. Maxillary periapical films c. a panorex
  3. The occlusal plane of the maxillary arch being radiographed should be a. Perpendicular to the floor b. Parallel to the floor c. At an angle of 45 º to the floor d. At an angle of 30 º to the floor b. parallel to the floor
  4. Vertical angulation in the bisecting technique for the same radiograph can differ in patients because of

c. Gagging d. Elongation c. gagging

  1. A latent image is a. An image taken with a long exposure b. Found only on fast films c. Composed of energized silver halide crystals d. A very light image on the developed film c. composed of energized silver halide crystals
  2. Cone cutting results from the central ray a. Not being aimed at the center of the film b. Having incorrect horizontal angulation c. Having insufficient vertical angulation d. Being eliminated from a closed plastic cone a. not bing aimed at the center of the film
  3. Black lines across the film may be the result of a. Double exposure b. Cone cutting c. Underexposure d. Excessive bending d. excessive bending
  4. Blurred films can result from a. Old film b. Movement of the patient c. Increased kVp

d. A faulty x-ray unit b. movement of the patient

  1. If a patient is reluctant to be radiographed, the assistant should a. Refer the patient to the dental hygienist b. Reschedule the patient c. Refer the patient to an x-ray laboratory d. Explain the procedure thoroughly to the patient d. explain the procedure thoroughly to the patient
  2. Exposure of a radiograph on a child a. Requires less time than on an adult b. Requires more time than on an adult