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16 Cards in this Set
- Front
- Back
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To help avoid molar overlap, the radiographer should place the image receptor?
a. Parallel to the buccal surfaces of the molars b. Perpendicular to the buccal surfaces of the molar c. parallel to the molar embrasures d. Perpendicular to the molar embrasures |
D. Perpendicular to the molar embrasures |
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To minimize canine- premolar overlap, the radiographer should direct the x-ray beam toward the image receptor slightly obliquely from the?
a. Mesial b. Distal c. Occlusal d. Apical |
B. Distal |
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To compensate for a shallow palatal vault, the vertical angulation may be adjusted to?
a. increase by up to 15 degrees b. decrease by up to 15 degrees c. increase by up to 25 degrees d. decrease by up to 25 degrees
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A. Increase by up to 15 degrees |
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Which area of the oral cavity would require the highest exposure setting?
a. Maxillary anterior region b. Maxillary posterior region c. Mandibular anterior region d. mandibular posterior region |
B. Maxillary Posterior region |
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The presence of a large mandibular torus may make which of these difficult?
a. aligning the correct horizontal angulation b. Determining the accurate vertical angulation c. Placing the image receptor precisely d. Directing the central ray of the x-ray beam at the center of the image receptor |
C. Placing the image receptor precisely |
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The best image receptor placement for a patient with a torus palatinus is
a. between the torus and tongue b. on the top of the torus c. near the front of the torus d. behind the torus |
D. Behind the torus |
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The paralleling technique is the best technique for imaging edentulous areas
The bisecting technique is the best technique when imaging endodontic technique |
The first statement is true The second statement is false |
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Which of the following radiographs would be the least beneficial for the totally edentulous patient?
a. Bitewing b. pericapica c. Panoramic d. Occlusal |
A. Bitewing |
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The exposure setting for edentulous regions should be decreased from the exposure time for the same region with teeth by?
a. One-half b. one-third c. one-fourth d. One-fifth |
D. one- fifth |
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Which of the following would be the BEST image receptor holder for exposing working radiographs during a root canal procedure?
a. Rinn XCP(R) b. Rinn Snap- A- Ray (r) c. Commercially made endodontic holder d. Polystyrene block |
C. Commercially made endodontic holder |
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Localization adds which of the following dimensions to two-dimensional radiographs?
a. Anterior-Posterior b. Buccal-Lingual c. Mesial-distal d. Inferior-superior |
B. Buccal- Lingual |
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Which of the following methods of localization utilizes a cross-sectional occlusal radiographs?
a. Definitive method b. Right-angle method c. tube shift method d. Buccal-object rule |
B. Right-angle method |
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If the tube shifts to the mesial and the object in question shifts to the distal, the object is located on the lingual
This is an example of the definitive method of localization
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Both statements are False |
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When exposing a disto-oblique periapical radiograph of the maxilla, which of the following changes should be made to the standard periapical radiograph?
a. 5-degree shift in the vertical angulation b. 10-degree shift in the horizontal angulation c. An increase in the time/impulse setting d. All of the above |
D. All of the above |
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To project an impacted mandibular third molar anteriorly onto the image receptor, a mandibular disto-oblique pericapical radiograph requires a?
A. 5-degree shift in the vertical angulation B. 10-degree shift in the horizontal angulation C. An increase in the time/impulse setting D. All of the above |
B. 10-degree shift in the Horizontal Angulation
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List four reasons to duplicate radiographs? |
Third party payment referring the patient to a specialist patient changes dentist or move For consultations with other professionals |
