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Acta Odontológica Latinoamericana

versão On-line ISSN 1852-4834


SILVA, Emmanuel J; HERRERA, Daniel R; SOUZA-JUNIOR, Eduardo J  e  TEIXEIRA, João M. Influence of irrigation and obturation techniques on artificial lateral root canal filling capacity. Acta odontol. latinoam. [online]. 2013, vol.26, n.2, pp.112-115. ISSN 1852-4834.

The aim of this study was to evaluate the influence of two different irrigation protocols on artificial lateral root canal filling capacity using different obturation techniques. Sixty single-root human teeth were used. Two artificial lateral canals were created in the apical third. Root canals were instrumented up to a 45 K-file to the working length. Before each file, root canals were irrigated either with 2 mL of 2.5% NaOCl or 2% chlorhexidine gel with further irrigation with saline solution and 3 mL of 17% EDTA. Specimens were randomly divided into three groups according to the obturation technique: (1) lateral compaction technique; (2) Tagger hybrid technique; and (3) thermoplasticized technique using BeeFill 2 in 1. All groups used AH Plus as the root canal sealer. The specimens were decalcified and cleared in methyl salicylate. The total length of lateral canals was observed under X30 magnification with a stereomicroscope and measured on the buccal and lingual root surfaces using Leica IM50 software. The data were submitted to ANOVA and Tukey test (p<0.05). Among the obturation techniques, BeeFill 2 in 1 showed deeper penetration into all lateral canals than the lateral compaction or Tagger hybrid techniques (p<0.05). The lateral compaction group showed the worst results (p<0.05). Irrigants did not affect the outcome; there was no difference between NaOCl and chlorhexidine when the same obturation technique was used (p>0.05). Regardless of the irrigant used during endodontic procedures, the thermoplasticized techniques showed higher penetration behavior for filling artificial lateral canals than the lateral compaction technique.

Palavras-chave : Endodontics; Therapeutic irrigations; Root canal obturation; Sodium hypochlorite; Chlorhexidine.

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