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Micro‐CT evaluation of filling of flattened root canals using a new premixed ready‐to‐use calcium silicate sealer by single‐cone technique

Tavares, Karina I. M. C. ; Pinto, Jáder C. ; Santos‐Junior, Airton O. ; Torres, Fernanda F. E. ; Guerreiro‐Tanomaru, Juliane M. ; Tanomaru‐Filho, Mário

Microscopy research and technique, 2021-05, Vol.84 (5), p.976-981 [Periódico revisado por pares]

Hoboken, USA: John Wiley & Sons, Inc

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  • Título:
    Micro‐CT evaluation of filling of flattened root canals using a new premixed ready‐to‐use calcium silicate sealer by single‐cone technique
  • Autor: Tavares, Karina I. M. C. ; Pinto, Jáder C. ; Santos‐Junior, Airton O. ; Torres, Fernanda F. E. ; Guerreiro‐Tanomaru, Juliane M. ; Tanomaru‐Filho, Mário
  • Assuntos: Analysis ; Calcium ; Calcium silicates ; Computed tomography ; CT imaging ; dental materials ; Endodontics ; Epoxy resins ; Flattening ; Methods ; physical properties ; Premolars ; root canal filling ; Root canal therapy ; Root canals ; Rubber products ; Sealers ; Sealing compounds ; Voids ; x‐ray microtomography
  • É parte de: Microscopy research and technique, 2021-05, Vol.84 (5), p.976-981
  • Notas: Funding information
    Conselho Nacional de Desenvolvimento Científico e Tecnológico, Grant/Award Numbers: 133310/2018‐3, 307145/2015‐8; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Grant/Award Number: 001; Fundação de Amparo à Pesquisa do Estado de São Paulo, Grant/Award Numbers: 2017‐14305‐9, 2017/19049‐0
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  • Descrição: The aim of this study was to evaluate the filling ability of a new premixed ready‐to‐use calcium silicate‐based sealer, in comparison with an epoxy resin‐based sealer by the single‐cone technique in flattened root canals. Thirty‐two flattened root canals of maxillary second premolars with buccal‐lingual diameter 4 or more times larger than the mesio‐distal diameter at 9 mm from the radiographic apex were selected. Root canals were prepared using Hyflex EDM 25/0.08 and additional preparation with ultrasonic tip Flatsonic and ProDesign Logic 25/0.03. After preparation, the root canals were filled with two root canal sealers (n = 16): Bio‐C Sealer or AH Plus using the single‐cone technique. Scanning was performed before and after root canal obturation using a Skycan 1176 micro‐computed tomography (micro‐CT) with an isotropic voxel size of 8.74 μm. The percentage of voids was analyzed in the cervical/middle thirds and in the apical third. Data were submitted to the Mann–Whitney test at a significance level of 5%. There was no statistical difference between Bio‐C Sealer and AH Plus (p > .05). The percentage of voids in the cervical/middle thirds was 8.94% (1.33–39.95) for Bio‐C Sealer and 9.30% (1.19–18.00) for AH Plus (p > .05). In the apical third, this percentage was 11.84% (4.85–27.00) for Bio‐C Sealer and 9.21% (1.34–28.78) for AH Plus (p > .05). By using the single‐cone technique, neither Bio‐C Sealer nor AH Plus provided a voids‐free root canal filling. Both sealers had similar filling ability in flattened root canals. Filling ability of a new ready‐to‐use calcium silicate‐based sealer was evaluated by using micro‐CT. The percentage of voids was similar between Bio‐C Sealer and AH Plus. None of the endodontic sealers was able to completely fill the root canals.
  • Editor: Hoboken, USA: John Wiley & Sons, Inc
  • Idioma: Inglês
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