A Large Radiopacity Is Seen on the Middle of the Panoramic

question 7

Multiple Choice

A large radiopacity is seen on the middle of the panoramic film.Identify the cause of this appearance:

• A)patient was slouched in the unit.
• B)patient's chin was tilted up too far.
• C)patient moved during the exposure.
• D)patient's lead apron was placed too high.

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Definitions:

Direct Materials

Raw materials that are directly traceable and integral to the finished product in the manufacturing process.

Selling Costs

All costs that are incurred to secure customer orders and get the finished product or service into the hands of the customer.

Indirect Costs

Costs that are not directly traceable to a single product or operation, such as overhead.

Opportunity Costs

The potential benefit missed out on when choosing one alternative over another.