Question 573 · LDEK · Access and canal preparation
Select the correct statements about the initial file:
1) it is a tool that undergoes slight binding when introduced into the canal at the working length;
2) it is 2-4 sizes smaller than MAF;
3) it corresponds to the canal diameter in the area of the apical foramen;
4) it is a single-use file;
5) its diameter is 1 smaller than the final GPR tool.
The correct answer is:
2) it is 2-4 sizes smaller than MAF;
3) it corresponds to the canal diameter in the area of the apical foramen;
4) it is a single-use file;
5) its diameter is 1 smaller than the final GPR tool.
The correct answer is:
- A. 1,3.
- B. 3,4.
- C. 2,5.
- D. 2,4.
- E. 1,5.
Hint
Think about how the initial apical file is chosen at working length and which anatomical dimension it estimates.
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