Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.11219
Revista de Odontologia da UNESP
Original Article

Evaluation of flow and filling of root canal sealers using different methodologies

Avaliação do escoamento e preenchimento de cimentos obturadores utilizando diferentes metodologias

Fernanda Ferrari Esteves TORRES; Juliane Maria GUERREIRO-TANOMARU; Jader Camilo PINTO; Idomeo BONETTI-FILHO; Mário TANOMARU-FILHO

http://dx.doi.org/10.1590/1807-2577.11219 Rev. odontol. UNESP, vol.48, e20190112, 2019
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Abstract

Abstract: Introduction: Flow and filling ability of root canal sealers are indispensable for hermetic sealing of the root canal. Micro-computed tomography (micro-CT) can be used as a complementary methodology to evaluate such properties.

Objective: To evaluate the flow and filling ability of AH Plus, Endofill and Sealapex by conventional methodology and micro-CT.

Material and method: The flow of the sealers was analyzed according to ISO 6876/2012 and complemented by the area evaluation. Glass plates were manufactured with diameters of 1×1×2 mm and 1×1×1 mm (length, width and height), with a central cavity and four grooves in the horizontal and vertical directions. Each material was placed in the central cavity. Another glass plate and a metal weight were placed on the cement and kept for 10 minutes. The glass plate/sealer set was scanned using micro-CT. The flow was calculated by linear measurement of the material in the grooves. The central filling (mm3) was calculated in the central cavity and the lateral filling was measured up to 2 mm from the central cavity. Data were submitted to ANOVA/Tukey tests (α=0.05).

Result: All evaluated sealers presented flow according to ISO 6876 standards. The materials showed central cavity filling capacity higher than 80% and lateral filling greater than 75%. There was no difference in flow (mm and mm2) and in the filling ability (mm3) provided by the materials (p>0.05).

Conclusion: All evaluated root canal sealers showed adequate flow and filling capacity, suggesting their clinical application.

Keywords

Endodontics, dental materials, X-ray microtomography

Resumo

Resumo: Introdução: Escoamento e capacidade de preenchimento de cimentos obturadores são indispensáveis para um selamento hermético do canal radicular. Microtomografia computadorizada (micro-CT) pode ser utilizada como uma metodologia complementar para avaliação de tais propriedades.

Objetivo: Avaliar escoamento e capacidade de preenchimento de AH Plus, Endofill e Sealapex, por meio de metodologia convencional e micro-CT.

Material e método: O escoamento dos cimentos foi analisado de acordo com as normas ISO 6876/2012 e complementado pela avaliação em área. Placas de vidro foram confeccionadas nos diâmetros de 1×1×2 mm e 1×1×1 mm (comprimento, largura e altura), com uma cavidade central e quatro canaletas nas direções horizontal e vertical. Cada material foi colocado na cavidade central. Outra placa de vidro e um peso de metal foram colocados sobre o cimento e mantidos por 10 minutos. O conjunto placa de vidro/cimento foi escaneado usando micro-CT. O escoamento foi calculado por medição linear do material nas canaletas. O preenchimento (mm3) central foi calculado na cavidade central e o preenchimento lateral foi medido até 2 mm a partir da cavidade central. Os dados foram submetidos aos testes ANOVA/Tukey (α=0.05).

Resultado: Todos os cimentos avaliados apresentaram escoamento de acordo com as normas ISO 6876. Os materiais mostraram capacidade de preenchimento da cavidade central superior a 80% e preenchimento lateral superior a 75%. Não houve diferença no escoamento (mm e mm2) e na capacidade de preenchimento (mm3) proporcionada pelos materiais (p>0.05).

Conclusão: Todos os cimentos obturadores avaliados mostraram adequado escoamento e capacidade de preenchimento, sugerindo a aplicação clínica dos mesmos.
 

Palavras-chave

Endodontia, materiais dentários, microtomografia por raio-X

References

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