Question 602 · LDEK · Complications and errors
Which of the following factors is most likely to lead to the formation of a ledge during the manual instrumentation of a curved root canal?
- A. a canal of large diameter and straight course.
- B. use of NiTi instruments.
- C. use of EDTA irrigants.
- D. use of instruments with 0.04 taper.
- E. preparation of the canal with excessive axial pressure and without prior scouting of its course.
Hint
A ledge forms where the file tip digs into the outer canal wall instead of following the curve; think which technique error causes this.
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