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!

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What contributes to the plasticity of amalgam?

Tin
Silver
Copper
Zinc

The correct answer is: Zinc

Zinc contributes to the plasticity of amalgam. When zinc is added to dental amalgam, it forms a eutectic phase with mercury that helps control the setting expansion of the amalgam and also contributes to the flow and condensation properties of the material during placement. Tin, silver, and copper are also components of dental amalgam but do not directly contribute to its plasticity in the same way that zinc does.