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!

Practice this question and more.

Lower mercury content in amalgam will affect its strength in what way?

Decrease strength
Increase strength
No effect on strength
First decrease, then increase

The correct answer is: Increase strength

Amalgam is a mixture of mercury and other metals, commonly used in dentistry. Generally, the higher the mercury content in amalgam, the stronger it becomes. Therefore, if the mercury content is lowered, it will result in a decrease in strength. Option A is incorrect because it states the opposite of what will actually happen. Option C is also incorrect because any change in mercury content will have an effect on the strength of amalgam. Option D is incorrect because there will be a direct decrease in strength with a decrease in mercury content, as stated in the correct answer.