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RADIATION HEALTH AND SAFETY EXAM Q&A
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RADIATION HEALTH AND SAFETY EXAM Q&A
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RADIATION HEALTH AND SAFETYEXAM Q&A
A thermometer should be suspended in which solution during conventional dental image
processing?
A. Developer
B. Fixer
C. Rinse
D. Water Bath - Answer-A.
The ideal temperature for the developer solution when manually processing dental
images should be:
A. 62
B. 64
C. 66
D. 68 - Answer-D.
The warmer the developer solution:
A. the better the quality of the image receptor will be.
B. the slower the visible image will occur.
C. the faster the image receptor will develop.
D. the longer the image receptor will need to remain in the fixer - Answer-C.
Which of the following is a correct characteristic of the developing solution?
A. The developer removes any non-energized silver bromide crystals from the image
receptor.
B. The developer solution reduces the silver bromide crystals to black metallic silver.
C. The developer solution causes the radiopaque areas on the image receptor to
appear.
D. The developer solution hardens the protective layer of the image receptor covering
the emulsion. - Answer-B.
When processing conventional dental images, when is the dental auxiliary able to first
view the image on the image receptor under white light without causing distortion?
A. After the developer solution.
B. After the initial rinse.
C. After the image receptor has been washed and dried.
D. After a few minutes in the fixer solution. - Answer-D.
,How should the dental auxiliary compensate if the developer solution is 10 degrees too
warm when processing image receptors?
A. Increase the fixing time.
B. Increase the developing time.
C. Decrease the fixing time.
D. Decrease the developing time. - Answer-D.
How will image receptors appear if they have been left in the fixer solution overnight?
A. Clear.
B. Dark.
C. Fogged.
D. Yellow-brown. - Answer-A.
A straight radiopaque border on the upper edge of an image receptor is the result of:
A. fixer solution cutoff.
B. developer solution cutoff.
C. an image receptor not being developed for the proper time.
D. too little water in the water bath. - Answer-B.
Which of the following causes reticulation
A. removing the image receptor too quickly from the outer packet.
B. Drastic temperature changes between the developer and the rinse.
C. Allowing the image receptors to touch during the drying cycle.
D. An imbalance of the chemicals in the developer solution. - Answer-B.
How would a light leak in the darkroom be detected?
A. Annual inspection check by the State Board of Health.
B. By performing a coin-fog test.
C. By conducting a crabtree test.
D. by performing a visual comparison test. - Answer-B.
When the dental auxiliary is performing a wet reading, which of the following steps must
be followed in order to avoid causing distortion?
a. the image receptor must be returned to the developer immediately after viewing the
image receptor
b. the image receptor must be returned to the fixer after the dentist has viewed the
image receptor
c. the image receptor must be rinsed immediately following the wet reading
d. the image receptor must be dried prior to the wet reading being performed. - Answer-
B.
,Which of the following is ran daily through the rollers of an automatic processing
machine to ensure that there is no residue left in the rollers?
A. A traditional unexposed intraoral image receptor.
B. A clearing film.
C. A cleaning film.
D. A step wedge film. - Answer-C.
How will fixer spots appear on a processed radiograph?
A. Yellow spots.
B. Dark spots.
C. White spots.
D. Brown spots. - Answer-C.
Which of the following is a true statement that will aid the assistant in the mounting of
image receptors in a full mouth series?
A. The mental foramen will appear in the mandibular molar periapical image receptor.
B. The coronoid process will appear int he maxillary molar periapical image receptor.
C. The genial tubercles will appear in the maxillary central periapical image receptor.
D. The tuberosity will appear in the mandibular molar periapical image receptors. -
Answer-B.
Which of the following images should include the retromolar pad area found in the
dentition?
A. Maxillary premolar periapical.
B. Molar bite-wing.
C. Mandibular molar periapical.
D. maxillary molar periapical. - Answer-C.
When mounting a full mouth series, which of the following anatomical structures will be
found in the center of maxillary canine periapical?
A. Inverted Y.
B. Hamulus.
C. Zygomatic process.
D. Mental foramen. - Answer-A.
Which of the following is a true statement regarding the labial mounting technique?
A. It is the mounting technique that is least likely to be used in a dentla office setting.
B. When mounted, the depressed side of the orientation dot is facing the operator.
C. In this technique, radio-graphs are viewed as if the operator is looking directly at he
patient, with the patient's left being the operator's right and vice versa.
, D. The concave side of the orientation dot is facing the operator. - Answer-C.
Which of the following statements is INCORRECT regarding the identification dot found
on many intraoral dental radio-graphs?
A. It is commonly used to aid in the mounting of image receptors.
B. When placed in the mouth, the raised portion of the dot faces he source of radiation.
C. The orientation dot can be used to determine the patient's right and left sides.
D. Radio-graphs can be placed into a single full moth series mount with the dots both
concave and convex. - Answer-D.
Which of the following is correct when mounting and labeling digital images?
A. Digital images may be moved around the screen to allow for proper mount
placement.
B. It is common practice to print out a copy of digital images, cut them out, and place
them into a clear plastic mount when requested be a dental office.
C. Each digital recording should be saved with a minimum of the patient's last name and
date if birth.
D. When exposing digital images, there is only size mount that is available in the digital
imaging software on the screen. - Answer-A.
Which of the following anatomical structures will be found int he maxillary molar
periapical image receptor?
A. Lingual foramen.
B. Median palatine suture.
C. Hamulus.
D. Mental ridge. - Answer-C.
Which of the following statements does NOT apply to the correct viewing and
interpretation of dental images?
A. Any trained dental professional with knowledge of anatomical structures may view
dental images.
B. Conventional dental images are best viewed with the use of an illuminator.
C. A dental assistant with advanced training may interpret and provide a definitive
diagnosis to the patient using their dental images.
D. Dental radio-graphs should be viewed promptly after mounting to ensure proper
placement. - Answer-C.
Which of the following best applies to the duplication of dental radio-graphs?
A. Duplicate images can be made of both conventional radio-graphs and of sensor-
based images.
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