Shape memory is seen in________________?
Correct answer: A. NITTINOL wire
- A. NITTINOL wire
- B. Stainless steel wire
- C. TMA wire
- D. Aluminium
Explanation
Nitinol, a nickel-titanium alloy, exhibits shape memory because of reversible austenite-martensite transformation. Stainless steel, TMA and aluminium do not show this characteristic shape-memory effect in ordinary dental use.
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