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10 Cards in this Set
- Front
- Back
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1. Each of the following is an indication for exposing occlusal radiographs EXCEPT one. Which one is the EXCEPTION? A.) Evaluate periodontal disease B.) Examine sinus borders C.) Locate foreign bodies D.) Reveal sialoliths |
A.) Evaluate periodontal disease |
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2. Which of the following will a mandibular cross-sectional occlusal radiograph best image? A.) Cleft palate B.) Fractured Jaw C.) Large periapical cyst D.) Sublingual swelling |
D.) Sublingual swelling |
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3. Which of these sizes is known as the occlusal image receptor? A.) #1 B.)#2 C.)#3 D.)#4 |
D.) #4 |
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4. The image receptor should be placed with the long dimension along the midline (front to back) for which of these occlusal radiographs? A.) Maxillary topographical anterior B.) Maxillary topographical posterior C.) Mandibular topographical anterior D.) Mandibular cross-sectional |
B.) Maxillary topographical posterior |
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5. Where should the embossed dot be positioned when placing an occlusal film packet intraorally? A.) Toward the apical B.) Toward the occlusal C.) Toward the anterior D.) Toward the posterior |
C.) Toward the anterior |
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6. The ideal patient head position when exposing a maxillary topographical occlusal radiograph is to position the occlusal plane _______ to the plane of the floor and the midsaggital plane ________ the the plane of the floor. A.) Parallel; perpendicular B.) Perpendicular; parallel C.) Parallel; parallel D.) Perpendicular; perpendicular |
A.) Parallel; perpendicular |
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7. The idea patient head position when exposing a mandibular cross-sectional occlusal radiograph is to position the head rest so that the chin is tipped _________ and the occlusal plane is _____________ to the plane of the floor. A.) down; perpendicular B.) up; perpendicular C.) down; parallel D.) up; parallel |
B.) up; perpendicular |
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8. Assuming that the patient's head is in the correct position, which of the following is the correct vertical angulation setting for a maxillary anterior topographical occlusal radiograph? A.) +65 degrees B.) +45 degrees C.) 0 degrees D.) -55 degrees |
A.) +65 degrees |
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9. Assuming that the patient's head is in the correct position, which of the following is the correct vertical angulation setting for a mandibular cross-sectional occlusal radiograph? A.) +65 degrees B.)+45 degrees C.) 0 degrees D.) -55 degrees |
C.) 0 degrees |
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10. What is the point of entry for correctly exposing a posterior mandible topographical occlusal radiograph? A.) The middle of the chin B.) A point 2 in. (5 cm) back from the tip of the chin C.) A point on the ala-tragus line below the outer cantus of the eye D.) A point on the inferior border of the mandible directly below the second mandibular premolar |
D.) A point on the inferior border of the mandible directly below the second mandibular premolar |
