Question 205 · LDEK · Fixed appliances
Choose correct features of arch wires made from nickel-titanium alloys:
1) shape memory;
2) high elasticity;
3) soldering ability;
4) source of low long-acting forces;
5) shaping ability.
Correct answer is:
2) high elasticity;
3) soldering ability;
4) source of low long-acting forces;
5) shaping ability.
Correct answer is:
- A. 1, 2, 3.
- B. 1, 2, 4.
- C. 2, 3, 4.
- D. 2, 4, 5.
- E. 1, 3, 5.
Hint
Recall the martensite–austenite behaviour of NiTi and how well it tolerates bending and heat joining compared with steel.
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