INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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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What is the main element in amalgam?

Silver
Copper
Zinc
50% Mercury

The correct answer is: 50% Mercury

Amalgam is a type of metal alloy commonly used in dentistry for fillings. The main element in amalgam is mercury, which makes up approximately 50% of the alloy composition. While silver, copper, and zinc may also be present in small amounts, they are not the main element in amalgam. Therefore, options A, B, and C are incorrect. It is important to note that the use of amalgam has been controversial due to the potentially harmful effects of mercury on health. However, the American Dental Association and other organizations have stated that the use of amalgam in dental fillings is safe.