Positioning the Arches Too Far Back in the Focal Trough

question 40

Multiple Choice

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.

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Refers to a fraction that has been reduced to its simplest form, where the numerator and denominator are as small as possible and have no common factors other than 1.