Question 528 · LDEK · Endodontic instruments
Choose false statements regarding the type C file:
1) such files cross-section shape is quadrilateral;
2) they are characterized by relatively low stiffness;
3) they end with a working apex shaped like a pyramid;
4) they are produced in one length.
The correct answer is:
2) they are characterized by relatively low stiffness;
3) they end with a working apex shaped like a pyramid;
4) they are produced in one length.
The correct answer is:
- A. 1, 2.
- B. 2, 3.
- C. 3, 4.
- D. 1, 3.
- E. 2, 4.
Hint
C-type files are designed to negotiate narrow, calcified canals — consider what property that requires and how many lengths would be practical.
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