Question 93 · LDEK · Endodontic instruments
Which of the following concerning spreaders in endodontic treatment is true?
1) they are used for the vertical condensation of gutta-percha;
2) they are used for the lateral condensation of gutta-percha;
3) stainless steel spreaders are used for obturation of the root canals with a significant degree of curvature;
4) nickel-titanium spreaders are used for obturation of the root canals with a significant degree of curvature.
The correct answer is:
2) they are used for the lateral condensation of gutta-percha;
3) stainless steel spreaders are used for obturation of the root canals with a significant degree of curvature;
4) nickel-titanium spreaders are used for obturation of the root canals with a significant degree of curvature.
The correct answer is:
- A. 1,2.
- B. 1,3.
- C. 1,4.
- D. 2,3.
- E. 2,4.
Hint
Distinguish the pointed instrument that makes room for accessory cones from the flat-ended one, and think about metal flexibility in curved canals.
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