Question 432 · LDEK · Root canal obturation
Indicate the true statements concerning the usage of spreaders in the endodontic treatment:
1) they are used in the filling method with thermoplastic obturator Thermafil;
2) they are used for vertical condensation of gutta-percha;
3) stainless steel spreaders are used to fill canals with a significant degree of curvature;
4) first spreader should be inserted into the root canal to a depth of 1-2 mm shorter than the working length;
5) they are available with handles or as finger-held instruments.
The correct answer is:
2) they are used for vertical condensation of gutta-percha;
3) stainless steel spreaders are used to fill canals with a significant degree of curvature;
4) first spreader should be inserted into the root canal to a depth of 1-2 mm shorter than the working length;
5) they are available with handles or as finger-held instruments.
The correct answer is:
- A. 1,3.
- B. 2,3.
- C. 2,5.
- D. 3,4.
- E. 4,5.
Hint
Distinguish pointed spreaders for lateral condensation from flat-ended pluggers, and consider which alloy suits curved canals.
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