Effect of obturation technique using a new bioceramic sealer on the presence of voids in flattened root canals

Autor(es)

Airton Oliveira SANTOS-JUNIOR ^[1] ; Mário TANOMARU-FILHO ^[2] ; Jáder Camilo PINTO ^[3] ; Karina Ines Medina Carita TAVARES ^[4] ; Fernanda Ferrari Esteves TORRES ^[5] ; Juliane Maria GUERREIRO-TANOMARU ^[6]

Afiliação do(s) autor(es)

^[1] Universidade Estadual Paulista. School of Dentistry. Department of Restorative Dentistry - Brasil

^[2] Universidade Estadual Paulista. School of Dentistry. Department of Restorative Dentistry - Brasil

^[3] Universidade Estadual Paulista. School of Dentistry. Department of Restorative Dentistry - Brasil

^[4] Universidade Estadual Paulista. School of Dentistry. Department of Restorative Dentistry - Brasil

^[5] Universidade Estadual Paulista. School of Dentistry. Department of Restorative Dentistry - Brasil

^[6] Universidade Estadual Paulista. School of Dentistry. Department of Restorative Dentistry - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Oral Research; v. 35, 2021-02-12.

Resumo

Abstract The aim of this study was to evaluate the filling ability of a new ready-to-use calcium silicate-based sealer using thermoplastic or single-cone technique in flattened root canals. Twenty-four flattened distal canals of mandibular molars with a buccolingual diameter 4 or more times larger than the mesiodistal diameter were selected. The root canals were prepared and filled (n = 12), according to the following techniques: thermoplastic or single-cone technique using Bio-C Sealer. The teeth were scanned using Skycan 1176 micro-computed tomography (micro-CT) - voxel size 8.74 µm, before and after filling the root canal. The percentage of voids in the filled root canals was evaluated, and the data were statistically analyzed using the unpaired t-test (α = 0.05). The root canals filled using the thermoplastic technique created a smaller percentage of voids in the cervical/middle thirds than those filled using the single-cone technique (p < 0.05). There was no difference in the percentage of voids using either technique in the apical third (p > 0.05). The flattened root canals in the cervical/middle thirds were better filled using the ready-to-use calcium silicate-based sealer associated to the thermoplastic technique, compared with the single-cone technique. In the apical third, the techniques showed similar filling ability. (AU)

• Processo FAPESP: 19/22885-0 - Avaliação de fraturas radiculares em diferentes aparelhos de CBCT usando diferentes parâmetros e detecção de microtrincas por nano-CT
• Beneficiário: Jáder Camilo Pinto
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 17/14305-9 - Avaliação de novas substâncias para irrigação de canais radiculares e de cimentos endodônticos à base de silicato de cálcio
• Beneficiário: Juliane Maria Guerreiro Tanomaru
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/19049-0 - Avaliação das etapas do tratamento de canais radiculares, e das propriedades físico-químicas e biológicas de materiais à base de silicato tricálcico
• Beneficiário: Mario Tanomaru Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/00321-0 - Desenvolvimento de novas metodologias utilizando micro-CT para avaliação de propriedades físico-químicas de materiais reparadores e cimentos endodônticos
• Beneficiário: Fernanda Ferrari Esteves Torres Carvalho
• Modalidade de apoio: Bolsas no Brasil - Doutorado