Which Statement(s) Is True of Packing Retraction Cord

question 13

Multiple Choice

Which statement(s) is true of packing retraction cord?

• A)It is important to place the retraction cord into the sulcus without damaging the surrounding gingival tissues.
• B)The placement and removal of gingival retraction cord are expanded functions and may be performed by a dental assistant trained in expanded functions.
• C)Generally, the operator removes the cord while the assistant prepares the impression material.
• D)All of these statements are true.

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Definitions:

First Selection

The initial choice or decision made from a set of options or alternatives.

Simple Random Sample

A simple random sample of size n from a finite population of size N is a sample selected such that each possible sample of size n has the same probability of being selected.

Probability

An indicator of the probability that a particular event will take place, represented by a numerical value ranging from 0 to 1, with 0 meaning the event cannot happen and 1 meaning the event is certain to happen.

Population

Every individual or item under consideration in a statistical evaluation.