Which of the Following Is True Concerning the Use of Endodontic

question 1

Multiple Choice

Which of the following is true concerning the use of endodontic files and reamers in dentistry?

• A) Rotary instruments are usually composed of stainless steel alloys.
• B) Nickel-titanium files are far more flexible than stainless steel files.
• C) Stainless steel files become more flexible as the diameter of the file increases.
• D) Reamers are similar to files except that they have more twists in the metal and cut faster.

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Definitions:

Average Total Cost Curve

A graphical representation that shows the average total cost of producing each quantity of output.

Total Product Curve

A graphical representation of the total quantity of output that can be produced by a firm as a function of the quantity of a single input used, keeping other inputs constant.

Marginal Revenue Curve

A graphical representation showing the change in total revenue from selling one additional unit of a product or service.

Average Total Cost Curve

A graphical representation that shows the average total cost of producing different quantities of output, typically U-shaped due to economies and diseconomies of scale.