In Iowa, an Expanded Function Dental Assistant can place retraction cord.

A temporary crown or bridge is placed to:

Which of the following would require more tooth reduction?

Non-impregnated retraction cord _________ contain chemicals and retracts the tissues by mechanical action.

A three-quarter crown covers the entire anatomical surfaces of the tooth.

The image below shows the distribution of volcanoes around the world. Based on the information on this figure, which statement BEST describes where most volcanoes are found?Click to view larger image.

Which of the following minerals is often found in evaporite deposits?

The following figure shows several different samples of sediments in optical microscope view. Which of the samples displays the BEST sorting?Click to view larger image.

Geologists use mineral composition to help categorize igneous rocks. From the information provided in the chart, which minerals would you expect to find in granite?Click to view larger image.

The rate of cooling of an igneous rock can be determined by the