Which of the Following Statements Is True Regarding Home Bleaching

question 15

Multiple Choice

Which of the following statements is true regarding home bleaching prescribed by the dentist?

• A) The material consists of clear,flexible strips containing a peroxide gel that are adapted over the teeth and worn for 30 minutes at a time once or twice a day.
• B) Only the anterior six teeth are covered.
• C) The gel is placed in a custom-formed soft,thin plastic tray and is worn by the patient for periods as short as 30 minutes twice daily or as long as overnight.
• D) The home bleaching process is less effective than the in-office process.

---

Definitions:

Direct Material Quantity Variance

The difference between the budgeted amount of materials needed for production and the actual amount used, expressed in cost or quantity.

Standard Price

The predetermined cost that a company expects to pay for materials, labor, and other inputs, used as a benchmark for variance analysis.

Actual Grams

The real-world measurement of weight for materials used in a production or laboratory setting, as opposed to theoretical or estimated amounts.

Labour Efficiency Variance

The difference between the actual labor hours spent on production and the expected (or standard) labor hours, multiplied by the standard labor rate.