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- Title
INFLUENCE OF TAPERED GUTTA-PERCHA MASTER POINTS AND TWO INSTRUMENTATION TECHNIQUES ON APICAL MICROLEAKAGE AND ROOT-FILLING MATERIAL ADAPTATION.
- Authors
de Moraes Nicastro, Karine Schell; do Prado, Maíra; Gomes, Brenda P. F. A.; Ferraz, Caio Cezar Randi; Zaia, Alexandre Augusto; de Almeida, José Flávio Affonso
- Abstract
The aim of the present study was to evaluate the apical filling using different tapered gutta-percha master points (GP) after two instrumentation techniques, apical stop and continuous preparation. Ninety mesial roots of mandibular molars were used. The specimens were divided in six groups according to instrumentation technique and tapered GP. Groups 1 to 3 - apical stop (1 mm short of the apex) and Groups 4 to 6 - continuous preparation (in the apex). For the root canal filling: Groups 1 and 4 - Fine GP, Groups 2 and 5 - Fine-medium GP, Groups 3 and 6 - Medium GP and AH Plus sealer. Continuous wave condensation technique was used. Filtration fluid model was used to assess apical microleakage. Next, cross sections of the roots were obtained to evaluate gutta-percha cone adaption to root canal walls under light microscope. The data were analyzed using Kruskal-Wallis and Mann-Whitney tests. In both methodologies, overall, the results showed that no statistically significant difference was observed among groups. In conclusion, the present study revealed that the use of different tapered gutta-percha master points for root filling associated with two instrumentation techniques, apical stop and continuous preparation, did not influence apical filling and microleakage, when using the continuous wave condensation as obturation technique.
- Subjects
ROOT canal treatment; ENDODONTICS; DENTAL pulp cavities; MICROLEAKAGE (Dentistry); TOOTH cervix
- Publication
International Journal of Clinical Dentistry, 2017, Vol 10, Issue 4, p237
- ISSN
1939-5833
- Publication type
Article