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14 Cards in this Set
- Front
- Back
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Caries appear radiopaque, because more radiation is passed through the demineralization than the surrounding tissue.
a. Both parts of the statement are true b. Both parts of the statement are false c. The first part is true; the second part is false d. The first part is false; the second part is true. |
d. The first part of the statement is false; the second part of the statement is true. |
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Each of the following will produce an ideal radiographic image for detecting caries EXCEPT one. Which is the EXCEPTION?
a. Bitewing radiographs b. Periapical radiographs c. Horizontal angulation that avoids overlapping. d. Excessive vertical angulation |
d. Excessive vertical angulation |
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Caries in the earliest stage is called:
a. incipient b. moderate c. advanced d. severe |
a. incipient |
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Radiographs are best at detecting incipient of which of these lesions on the tooth?
a. occlusal b. proximal c. buccal/lingual d. cemental |
b. proximal |
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The key to successfully interpreting radiographs for proximal surface caries is to examine the contact point between adjacent teeth and just apical to the:
a. DEJ b. CEJ c. estimated gingival margin d. alveolar bone crest |
c. estimated gingival margin |
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Proximal surface carious lesions appear
a. triangular b. square c. round d. crescent shaped |
a. Triangular |
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Which of the follwoing appears radiographically as a radiolucent notch that is less than halfway through the enamel
a. incipient proximal caries b. moderate proximal caries c. advanced proximal caries d severe proximal caries |
a incipient proximal caries |
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which of the following appears radiographically as a radiolucent double triangle that is less than halfway through the dentin toward the pulp
a. incipient proximal caries b. moderate proximal caries c. advanced proximal caries d severe proximal caries |
c. advanced proximal caries |
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The key to successfully interpreting radiographs for occlusal caries is to examine:
a. the occlusal surface for changes in the pits and fissures b. under the occlusal surface for changes in the dentin. c. the contact point between teeth for changes in enamel d. just apical to the contact area |
b. under the occlusal surface for changes in the dentin |
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Which of the following appears radiographically as a round radiolucency in the middle of the tooth with well defined borders?
a proximal caries b. occlusal caries c. cemental caries d. buccal/lingual caries |
d. buccal/lingual caries |
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Which of the following appears radiographically as an ill-defined crescent-shaped radiolucency below the CEJ?
a. proximal caries b. occlusal caries c. cemental caries d. buccal/lingual caries |
c. cemental caries |
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Caries that occur under a restoration or around the margins are called:
a recurrent caries b. cemental caries c. root carie d. buccal caries |
a. recurrent caries |
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EAch of the following may mimic caries radiographically EXCEPT one. Which is the EXCEPTION?
a. composite restorations b. stainless steal crowns c. cervical burnout d. mach banding |
b. stainless steal crouwns |
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An optical illusion created by an increased radiolucency observed at the cervical area of the toot his called mach banding. the mach banding effect increases when overlap errors occur.
a. Both statements are true b. Both statements are false c. The first statement is true; the second statement is false d. The first statement is false; the second statement is true. |
d. The first statement is false; the second statement is true. |
