Question 46 · LDEK · Fixed appliances
Which features are characteristic of steel archwires, especially stainless steel (SS), used in orthodontics?
1) can be soldered and welded;
2) tooth movement generates considerable friction;
3) their features cannot be changed by heat treating;
4) are easy to form and bend;
5) can be formed but can break in sharp bends.
The correct answer is:
2) tooth movement generates considerable friction;
3) their features cannot be changed by heat treating;
4) are easy to form and bend;
5) can be formed but can break in sharp bends.
The correct answer is:
- A. 1,2,3,5.
- B. 1,2,4.
- C. 2,3,5.
- D. 1,4.
- E. all the above.
Hint
Stainless steel is the reference wire for sliding mechanics and its properties can be modified by heat; judge each statement against that.
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