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Questions and Answers
Why is a small grain size generally more desirable in an alloy?
Why is a small grain size generally more desirable in an alloy?
- To make the alloy easier to cast
- To ensure uniform properties of the alloy (correct)
- To increase the melting range of the alloy
- To reduce the stiffness of the alloy
What is the purpose of adding grain refiners to gold-based alloys?
What is the purpose of adding grain refiners to gold-based alloys?
- To lower the density of the alloy
- To reduce the grain size (correct)
- To enhance the color of the alloy
- To increase the stiffness of the alloy
In terms of hardness, why is a softer restoration preferable for cutting or adjustment?
In terms of hardness, why is a softer restoration preferable for cutting or adjustment?
- To make polishing easier (correct)
- To avoid distortion or fracture
- To resist scratching
- To lower the wear on opposing teeth
Why is a high modulus (stiffness) important for certain restorations?
Why is a high modulus (stiffness) important for certain restorations?
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How does the melting range of an alloy affect its ease of casting?
How does the melting range of an alloy affect its ease of casting?
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What role does the density of an alloy play in determining its cost?
What role does the density of an alloy play in determining its cost?
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