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15 Cards in this Set
- Front
- Back
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What is the appropriate corrective action for a periapical radiograph of the maxillary molar region that did not image the third molar?
a. Position the image receptor higher in the mouth b. position the image receptor lower in the mouth c. move the image receptor forward in the mouth d. Move the image receptor back further in the mouth |
D. Move the image receptor forward in the mouth |
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Each of the following will result in not recording the apices of the maxillary premolar teeth on a periapical radiograph except one. Which ones is the exception
a. Image receptor not placed high enough in relation to the teeth
b. image receptor not placed in toward the midline of the palate
c. Patient not occluding all the way down on the image receptor holder biteblock
d. Vertical angulation was excessive
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D. Vertical angulation was excessive |
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What does herringbone error indicate?
a. Embossed dot was positioned incorrectly b. lead foil was processed with the film c. film packet was placed in the oral cavity backwards d. temperature of the processing chemicals were not equal |
C. Film packet was placed in the oral cavity backwards |
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When using the bisecting technique, which of these errors result from inadequate vertical angulation?
a. Elongation b. Foreshortening c. Conecut d. Overlapping |
A. Elongation |
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What error results in overlapped contacts being more severe between the first and second molar than between the first and second premolar?
a. Excessive vertical angulation b. inadequate vertical angulation c. mesiodistal projection of horizontal angulation d. distomesial projection of horizontal angulation |
C. Mesiodistal projection of horizontal angulation
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Overlapped teeth contacts renders a bitewing radiograph undiagnostic. The overlap appears more severe in the anterior region. What corrective action is needed?
a. increase the vertical angulation b. decrease the vertical angulation c. shift the horizontal angulation toward the mesial d. Shift the horizontal angulation toward the distal |
C. Shift the horizontal angulation toward the mesial |
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Which of these conditions results from a failure to direct the central ray toward the middle of the image receptor?
a. Overlapping b. Conecut c. Elongation d. Foreshortening |
B. Cone Cut |
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Which of these indicated an overexposed radiograph?
a. Clear image b. light image c. dark image d. double image |
C. Dark image |
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Each of the following will result in radiographs that are too light Except one. Which one is the exception?
a. Hot developer solution b. Old, expired film c. Underexposed d. Underdeveloped |
A. Hot developer solution |
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Each of the following will result in radiographs that are blank (clear) Except one. Which one is the exception?
a. no exposure to x-ray b. placing the film in the fixer first c. extended time in warm water rinse d. accidental white light exposure |
D. Accidental white light exposure |
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If two films become overlapped together because they were inserted into the automatic processor too quickly, what is the result?
a. Green films b. Brown films c. Light films d. Black films |
A. Green Films |
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Which of these indicates that a film was not properly washed?
a. Image appears light b. Fogging results c. Film turns brow d. white spots form |
C. film turns brown |
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Each of the following will result in black artifacts on the radiographs except one. Which one is the Exception?
a. Static electricity b. Bent film c. Glove powder d. Fixer splash
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D. Fixer splash |
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Static electricity appears radiographically as back what?
a. thin lines b. starburst c. dots d. any of the above |
D. Any of the above |
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Each of the following is a cause of film fog Except one. Which one is the exception?
a. Exposure to scatter radiation b. use of old, expired film c. double exposing the film d. chemical fume contamination |
C. Double exposing the film |
