The paralleling technique must achieve parallelism by placing the image receptor:
a. away from the crowns of the teeth.
b. away from the root tips of the teeth.
c. closer to the crowns of the teeth.
d. closer to the root tips of the teeth.
a. The paralleling technique must achieve parallelism by placing the image receptor away from the crowns of the teeth. Parallelism is accomplished by using an image receptor positioner or film holder specifically designed to allow the patient to stabilize the image receptor in this position away from the crowns of the teeth.
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