Effect of irrigation protocols on root canal wall after post preparation: a micro-CT and microhardness study

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dc.contributor.authorde Rosatto, Camila Maria Peres
dc.contributor.authorFerraz, Danilo Cassiano [UNESP]
dc.contributor.authorOliveira, Lilian Vieira
dc.contributor.authorSoares, Priscilla Barbosa Ferreira
dc.contributor.authorSoares, Carlos José
dc.contributor.authorTanomaru-Filho, Mario [UNESP]
dc.contributor.authorMoura, Camilla Christian Gomes
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:48:57Z
dc.date.available2022-04-28T19:48:57Z
dc.date.issued2021-01-01
dc.description.abstractThe aim of this study was to investigate the effects of different post space irrigation protocols for removing residual filling material from dentin walls, by using microcomputed tomography (micro-CT), and the influence of these protocols on dentin microhardness. Bovine incisors (n = 35) were filled with the single-cone technique and MTA Fillapex (Angelus, Londrina, PR, Brazil). Post space preparation (PSP) was performed 7 days after filling, using the Odous Touch electrical system (Odous De Deus Ind. e Com., Belo Horizonte, MG, Brazil), followed by post space irrigation using manual irrigation, passive ultrasonic irrigation, or Easy Clean, together with 2.5% sodium hypochlorite (NaOCl), or with 2.5% NaOCl and 17% EDTA (NaOCl/EDTA). Micro-CT scans were performed at three time points. The residual filling material was evaluated at three levels: cervical, middle and apical. The Knoop test was measured with four indentations around the canal lumen at three dentin depths: X (100 μm), Y (200 μm) and Z (400 μm). Statistical analysis was performed using ANOVA (p < 0.05). The effects of the activation method (p < 0.001), and the root level (p = 0.013), as well as the interaction between the irrigant and the activation method (p = 0.041), led to different percentages of residual filling material. Lower amounts of residual filling material were observed at the cervical versus the middle and apical levels (p < 0.05). No significant differences were observed in dentin microhardness (p > 0.05). The best removal of the residual filling material was performed using the Easy Clean tip and NaOCl/EDTA, regardless of the activation methodsen
dc.description.affiliationUniversidade Federal de Uberlândia – UFU School of Dentistry Department of Endodontics, MG
dc.description.affiliationUniversidade Estadual Paulista – Unesp School of Dentistry Department of Restorative Dentistry, SP
dc.description.affiliationUniversidade Federal de Uberlândia – UFU School of Dentistry Department of Periodontology and Implantology, MG
dc.description.affiliationUniversidade Federal de Uberlândia – UFU School of Dentistry Department of Operative Dentistry and Dental Materials, MG
dc.description.affiliationUnespUniversidade Estadual Paulista – Unesp School of Dentistry Department of Restorative Dentistry, SP
dc.identifierhttp://dx.doi.org/10.1590/1807-3107bor-2021.vol35.0122
dc.identifier.citationBrazilian Oral Research, v. 35.
dc.identifier.doi10.1590/1807-3107bor-2021.vol35.0122
dc.identifier.issn1807-3107
dc.identifier.issn1806-8324
dc.identifier.scopus2-s2.0-85122232923
dc.identifier.urihttp://hdl.handle.net/11449/223160
dc.language.isoeng
dc.relation.ispartofBrazilian Oral Research
dc.sourceScopus
dc.subjectHardness tests
dc.subjectRoot canal irrigants
dc.subjectX-ray microtomography
dc.titleEffect of irrigation protocols on root canal wall after post preparation: a micro-CT and microhardness studyen
dc.typeArtigo
unesp.author.orcid0000-0003-0207-8402[1]
unesp.author.orcid0000-0001-9102-4320[2]
unesp.author.orcid0000-0002-1805-8302[3]
unesp.author.orcid0000-0002-4492-8957[4]
unesp.author.orcid0000-0002-8830-605X[5]
unesp.author.orcid0000-0002-2574-4706[6]
unesp.author.orcid0000-0002-5653-8403[7]

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