Question 11 · LDEK · Endodontic instruments
Indicate the true statements concerning the endodontic treatment with ProTaper system:
1) this technique is dedicated to the preparation of narrow and curved canals;
2) these tools are available in manual and machine versions;
3) the cross-section of F2 tools is a convex triangle shape;
4) the ProTaper system is recommended for the preparation of the apical part of root canals;
5) SX tools are 19 mm, 21 mm and 25 mm in length.
The correct answer is:
2) these tools are available in manual and machine versions;
3) the cross-section of F2 tools is a convex triangle shape;
4) the ProTaper system is recommended for the preparation of the apical part of root canals;
5) SX tools are 19 mm, 21 mm and 25 mm in length.
The correct answer is:
- A. 1,2,3.
- B. 3,4,5.
- C. 1,3,5.
- D. 2,4,5.
- E. 1,2,4.
Hint
Recall the progressive-taper design, the cross-section of shaping versus larger finishing files, and the single length of the SX file.
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