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Effectiveness of different obturation techniques in surpassing the ledge formed in simulated curved canals
Remote (Português (Brasil))

Keywords

Endodontics
Root canal therapy
Root canal obturation
Root canal filling materials

How to Cite

1.
Gabardo MCL, Silva WJ da, Gonçalves LM, Deonízio MDA. Effectiveness of different obturation techniques in surpassing the ledge formed in simulated curved canals. Braz. J. Oral Sci. [Internet]. 2015 Oct. 16 [cited 2023 Dec. 2];12(2):138-42. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641101

Abstract

Aim: To compare the effectiveness of different obturation techniques in surpassing the ledge formed in simulated curved root canals. Methods: Eighty acrylic-resin blocks with curved canals were instrumented with Gates-Glidden drills to simulate a ledge formation. Then, a K-File #10 was used for trying to surpass the deviation, and the blocks that permitted surpassing were rejected. The remaining blocks were divided into 4 groups according to the obturation technique: lateral condensation, Tagger’s Hybrid technique, Thermafil and System B. The blocks had their images digitalized using a scanner before and after the obturation procedures. The images were analyzed with Image Tool 3.0 software. Statistical analysis was performed by one-way ANOVA at a significant level of 5%. Results: The System B resulted in the highest obturated area (p<0.001). There were no significant differences between the Tagger’s Hybrid technique and Thermafil system regarding the effectiveness in surpassing ledge (p>0.05). The lateral condensation resulted in the worst ability in filling the ledge space (p<0.001). Conclusions: Within the limitations of this study, it was possible to conclude that techniques using heat condensation or gutta-percha thermoplastification were more effective in surpassing the ledge formed in curved canals than the lateral condensation.
Remote (Português (Brasil))
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2015 Marilisa Carneiro Leão Gabardo, Wander José da Silva, Letícia Machado Gonçalves, Marili Doro Andrade Deonízio

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