National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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Practice this question and more.

How can you increase the working time of PVS?

Freeze it
Refrigerate it
Heat it
Leave it at room temperature

The correct answer is: Refrigerate it

Refrigerating PVS can increase its working time compared to other methods such as freezing or heating. Freezing it can cause the PVS to become too thick and difficult to work with, while heating it can cause it to set more quickly and decrease working time. Leaving it at room temperature may not have a significant impact on working time. Therefore, refrigeration is the best option for increasing the working time of PVS.