Ace the California RDA Written Exam 2026 – Drill, Fill, and Thrill Your Way to Success!

Question: 1 / 400

An example of a contaminated item commonly found in the dental laboratory would be a

Model trimmer

Impression

An impression would be an example of a contaminated item commonly found in the dental laboratory because it comes in direct contact with the patient's oral cavity. While the other options, such as the model trimmer, bite registration material, and articulator, may also come in contact with the patient's oral cavity, they can be properly cleaned and sterilized before further use. However, impressions cannot be cleaned as thoroughly and can contain bacteria and microorganisms that pose a risk for cross-contamination in the laboratory.

Get further explanation with Examzify DeepDiveBeta

Bite registration material

Articulator

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy