An AP Atlas and Axis Projection with Poor Positioning Demonstrates

question 8

Multiple Choice

An AP atlas and axis projection with poor positioning demonstrates the upper incisors about 1 inch (2.5 cm) inferior to the posterior occiput, obscuring the dens and atlantoaxial joint. How was the positioning setup mispositioned for such a projection to be obtained?
1) The patient's face was rotated toward the left side.
2) The acanthiomeatal line was perpendicular to the IR, and the central ray was perpendicular.
3) The patient's chin was tucked more than needed.
4) An imaginary line connecting the occlusal plane and posterior occiput's inferior edge was not aligned perpendicular to the imaging table.

• A) 1 only
• B) 2 only
• C) 2 and 3 only
• D) 2, 3, and 4 only

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Definitions:

Undue Influence

A situation where an individual is able to influence another person's decisions due to a special relationship, often leading to unfair outcomes.

Relationships Affected

Refers to how interpersonal, societal, or business connections are influenced by certain events or decisions.

Voidable Contract

A contract that appears valid and enforceable on the surface but may be declared void by one of the parties based on certain grounds, such as fraud or coercion.

Undue Influence

A situation where an individual is able to persuade another's decisions due to the relationship between the two parties, often leading to an unfair advantage.