Question 6 · LDEK · Access and canal preparation
Indicate the true statements concerning circumferential filing:
1) it can be used for preparing wide root canals;
2) it is particularly beneficial for the preparation of root canals that are round in cross-section;
3) it involves sequential insertion and withdrawal of the instrument into and from the canal;
4) pressure is only excerted on two contralateral walls of the root canal.
The correct answer is:
2) it is particularly beneficial for the preparation of root canals that are round in cross-section;
3) it involves sequential insertion and withdrawal of the instrument into and from the canal;
4) pressure is only excerted on two contralateral walls of the root canal.
The correct answer is:
- A. 1,3.
- B. 1,2,3.
- C. 1,3,4.
- D. only 1.
- E. only 3.
Hint
Ask which canal cross-section requires the file to be deliberately moved around the whole circumference to touch every wall.
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