Five Key Variables Affect Tooth Structure Loss During Extrinsic Tooth

question 18

Multiple Choice

Five key variables affect tooth structure loss during extrinsic tooth stain removal with a rubber cup: abrasiveness of the prophylaxis paste, quantity of abrasive agent, contact time of the rubber cup on the tooth surface, speed of the rubber cup, and pressure or force applied to the rubber cup. To preserve tooth structure and prevent damage to teeth and restorative materials, the practitioner starts with the least abrasive agent and amount of agent, with the least amount of rubber cup contact time, and with the least amount of pressure to remove the extrinsic stain.

• A) Both statements are true.
• B) Both statements are false.
• C) The first statement is true, and the second statement is false.
• D) The first statement is false, and the second statement is true.

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Definitions:

Net Working Capital

A measure of a company's liquidity, calculated as the difference between its current assets and current liabilities.

Total Equity

The financial value representing the amount of money that would be returned to shareholders if all the assets were liquidated and all the company's debts were paid off.

Progressive Tax System

A tax system where the tax rate increases as the taxable amount or income increases.

Incremental Income

Additional income generated from a specific action or decision, compared to a scenario where the action is not taken.