National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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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.