Which of the following will produce the most rigid restoration for framework of same dimension ?
Correct answer: A. Cobalt-chrome alloys
- A. Cobalt-chrome alloys
- B. Palladium alloys
- C. Wrought alloy
- D. Partial denture casting gold in hardened condition
Explanation
Rigidity for frameworks of identical dimensions depends mainly on the modulus of elasticity. Cobalt-chromium has a higher modulus than wrought alloys, palladium alloys, and hardened casting gold, so it produces the most rigid framework.
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