Question 142 · LDEK · Root canal obturation
The root canal obturation based on the application of warm gutta-percha through various techniques is characterized by:
1) possibility of pushing the material beyond the apical foramen;
2) gutta-percha shrinkage after cooling;
3) lack of the filling of lateral canals;
4) necessity to use a sealer;
5) harmful effect of thermoplasticized gutta-percha on the periradicular tissues.
The correct answer is:
2) gutta-percha shrinkage after cooling;
3) lack of the filling of lateral canals;
4) necessity to use a sealer;
5) harmful effect of thermoplasticized gutta-percha on the periradicular tissues.
The correct answer is:
- A. 1,2,3.
- B. 1,2,4.
- C. 2,3,4.
- D. 1,2,5.
- E. 1,3,5.
Hint
Think about how softened gutta-percha behaves as it cools, how well it flows into ramifications and whether a sealer is still needed.
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