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19 Cards in this Set
- Front
- Back
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The term that would describe two triangles that could be superimposed and be exactly the same |
Congruent |
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A patient with a low palatal vault, what would you do to compensate for this when using the paralleling technique |
Increase the Vertical Angle |
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Why is an increased target-film distance required in the paralleling technique |
To avoid Image Magnification |
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The distance between the film and tooth in the paralleling technique |
Object-Receptor Distance |
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Two lines intersect at right angles to each other |
Perpendicular |
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The distance between source of x-rays and receptor |
Target-Receptor Distance |
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To compensate for image magnification what must be increased |
Target-Film Distance |
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Failure to center the primary beam on the film would result in |
Cone Cut |
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When exposing periodical receptors with the paralleling technique, always begins with what teeth first |
Anterior Teeth |
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What teeth should you always exposed last |
Mandibular Molars |
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What are the 3 advantages of the paralleling technique |
Accuracy Simplicity Duplication |
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What re the 2 disadvantages of the paralleling technique |
Receptor placement Discomfort |
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The relationship of the central ray to the receptor in the paralleling technique by degrees |
90 degrees to the receptor and long axis of the tooth |
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The relationship between the receptor and the long axis of the tooth in the paralleling technique |
The receptor and the tooth are parallel to each other |
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The distance between the receptor and the tooth in the paralleling technique |
The receptor is placed away from the tooth and toward the middle of the oral cavity |
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Anterior receptors are placed ________ Posterior receptors are placed ________ |
Vertically Horizontally |
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if the parallelism between the receptor and the long axis of the tooth is less then _______ degrees, the image is generally acceptable |
20 |
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True or False: The advantages of the paralleling technique outweigh the disadvantages |
True |
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What degree of vertical angle is used for Mandibular Molar Peripicals |
+5 Degrees |
