Which is the correct order of operations to construct a cast appliance?

Name: Which is the correct order of operations to construct a cast appliance?
Brand: Quizplus
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Question

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The correct order of operations to construct a cast appliance is to first create a wax pattern, then attach the sprue to the wax pattern, invest the wax/sprue assembly in investment material, burn out the wax/sprue to create a mold, and then cast the appliance in the mold. Option D correctly lists the steps in this order.

Which Is the Correct Order of Operations to Construct a Cast