Question 262 · LDEK · Complications and errors
The fracture of the endodontic instrument in the canal can be avoided by:
1) not precurving the stainless steel instrument to the shape of the canal curvature before its insertion into the canal;
2) precurving the stainless steel instrument to the shape of the canal curvature before its insertion into the canal;
3) not using a damaged instrument;
4) not omitting successive sizes of applied instruments;
5) exerting marked force onto the instrument.
The correct answer is:
2) precurving the stainless steel instrument to the shape of the canal curvature before its insertion into the canal;
3) not using a damaged instrument;
4) not omitting successive sizes of applied instruments;
5) exerting marked force onto the instrument.
The correct answer is:
- A. 2,3,5.
- B. 2,4,5.
- C. 2,3,4.
- D. 1,3,5.
- E. 1,3,4.
Hint
Think about lowering stress on the file: match its shape to the canal, discard fatigued files and avoid jumps in size or force.
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