Which of the Following May Be Used to Remove Biofilm

question 21

Multiple Choice

Which of the following may be used to remove biofilm from implants without abrading the surface of the titanium?
1) Metal hand instruments
2) Special plastic hand instruments
3) Plastic sheaths for ultrasonic scalers
4) Nonabrasive paste or tin oxide

• A) 1,2,3,4
• B) 2,3,4
• C) 2,4
• D) 4

---

Definitions:

Outlay

The amount of money spent on a particular item or service, serving as expenses in financial transactions or projects.

Opportunity Cost

The cost of forgoing the next best alternative when making a decision or choosing between options.

Capital

Economic resources that are used to create goods and services, such as buildings, machinery, and equipment.

Accounting Profit

Total revenue minus total explicit cost