Which of the Following Is True About the Correct Adaptation

question 17

Multiple Choice

Which of the following is true about the correct adaptation of an ultrasonic working end to the tooth surface?

• A) The working end is angulated at more than 45 degrees and less than 60 degrees.
• B) The working end should be angulated at 15 degrees or almost parallel to the long axis of the tooth.
• C) The working end is angulated at 60 degrees to 80 degrees to the tooth surface.
• D) The working end is angulated at zero degrees to the tooth surface.
• E) The working end is adapted at a different angle depending on if it is a piezoelectric tip or a magnetostrictive insert.

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Definitions:

Economic Profits

Profits exceeding the total costs of production, including both explicit and implicit costs, representing gains above what could be earned in the next best alternative use of resources.

Pure Monopolist

A market participant who exclusively controls the supply of a particular good or service, without competition or substitute products.

ATC

Average Total Cost, which represents the per-unit cost of production, including both fixed and variable costs.

Economic Profit

Profit calculated by subtracting both explicit and implicit costs from total revenue, reflecting the true economic performance of a company.