Use Case a to Answer the Following Questions

question 2

Multiple Choice

Use Case A to answer The Following questions
CASE A
This 54-year-old female is undergoing orthodontic therapy in response to temporomandibular disorder (TMD) . The maxillary orthodontic appliances were placed 18 months ago after an examination revealed various issues with malocclusion that were contributing to her chief complaint of temporomandibular joint (TMJ) pain and "sore jaws." (See Figure 6-31.)
-Each of the following is a possible cause of the radiographic error noted in the left mandible premolar periapical radiograph EXCEPT one. Which is the EXCEPTION?

• A)Movement of the tube head during exposure
• B)Image receptor not placed parallel to the embrasures of the teeth of interest
• C)Central ray of the x-ray beam not directed perpendicular to the image receptor
• D)Image receptor positioned too anteriorly
• E)Malpositioned or crowded teeth

---

Definitions:

Selling Price

The amount of money charged for a product or service, which can cover costs and provide profit for the seller.

Machine Hours

represent the total time that production equipment or machines are operated within a specific period, often used to allocate manufacturing overhead.

Contribution Margin

Contribution margin is the difference between sales revenue and variable costs, indicating how much revenue contributes towards covering fixed costs and generating profit.

Direct Labour Hours

The total hours worked by employees directly involved in the production process, a key factor in calculating labor costs and efficiency.