Positioning the arches too far back in the focal trough, toward the tube head, will result in
A) the anterior teeth appearing blurred and diminished in width.
B) the anterior teeth appearing blurred and magnified.
C) an image that appears as an exaggerated smile.
D) wide radiopacities superimposed over the anterior teeth.
B
Explanation: A) Positioning the patient too far forward in the focal trough results in all of the anterior teeth appearing blurred and narrowed in width. Consequently, when the patient is too far back toward the tube head, the anterior teeth will appear blurred and magnified.
B) Positioning the patient too far forward in the focal trough results in all of the anterior teeth appearing blurred and narrowed in width. Consequently, when the patient is too far back toward the tube head, the anterior teeth will appear blurred and magnified.
C) Positioning the patient too far forward in the focal trough results in all of the anterior teeth appearing blurred and narrowed in width. Consequently, when the patient is too far back toward the tube head, the anterior teeth will appear blurred and magnified.
D) Positioning the patient too far forward in the focal trough results in all of the anterior teeth appearing blurred and narrowed in width. Consequently, when the patient is too far back toward the tube head, the anterior teeth will appear blurred and magnified.
You might also like to view...
The clean room is a negative-pressure room
Indicate whether the statement is true or false
Which of the following describes how platelet clumping artificially alters platelet parameters?
a. Increases both the PDW and the MPV b. Decreases both the PDW and the MPV c. Increases the PDW and decreases the MPV d. Decreases the PDW and increases the MPV
Which type of alarm-initiating device is activated in the presence of carbon dioxide, carbon monoxide, and other gases produced by fires in confined spaces?
A. Heat detector B. Flame detector C. Fusible detector D. Fire-gas detector
It is estimated that the overall process to plan, implement, and monitor the transition to ICD-10-CM/PCS will take:
A) approximately five years. B) no more than two years. C) seven to nine years. D) depends on the size and complexity of the organization.