Rotatory Toothbrushes Are Better Versus Sonic Toothbrushes or Manual Toothbrushes

question 6

Multiple Choice

Rotatory toothbrushes are better versus sonic toothbrushes or manual toothbrushes.Given that the scientific evidence does not dictate one type of toothbrush over another,in the practice setting clinical judgment and patient values are equal determining factors in the type of brush that is recommended.

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

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Definitions:

Labor Efficiency Variance

The difference between the actual hours worked and the standard hours expected to produce a certain level of output, multiplied by the standard labor rate.

Labor Rate Variance

The difference between the actual cost of labor and the expected (or standard) cost, often used in manufacturing to measure efficiency and cost management.

Favorable

A term typically used in budgeting and accounting to describe variances or outcomes that are better than expected or budgeted figures.

Variable Overhead Rate Variance

The difference between the actual variable overhead incurred and the standard variable overhead estimated.