Autor(es)

Esteves Torres, Fernanda Ferrari ; Pinto, Jader Camilo ; Figueira, Gabriella Oliveira ; Guerreiro-Tanomaru, Juliane Maria ; Tanomaru-Filho, Mario

• Tipo de documento: Artigo Científico
• Fonte: RESTORATIVE DENTISTRY AND ENDODONTICS; v. 46, n. 1, p. 8-pg., 2021-02-01.

Resumo

Objectives: New premixed bioceramic root repair materials require moisture for setting. Using micro-computed tomography (micro-CT), this study evaluated the filling ability and volumetric changes of calcium silicate-based repair materials (mineral trioxide aggregate repair high-plasticity [MTA HP] and Bio- C Repair, Angelus), in comparison with a zinc oxide and eugenol-based material (intermediate restorative material [IRM]; Dentsply DeTrey). Materials and Methods: Gypsum models with cavities 3 mm deep and 1 mm in diameter were manufactured and scanned using micro-CT (SkyScan 1272. Bruker). The cavities were filled with the cements and scanned again to evaluate their filling capacity. Another scan was performed after immersing the samples in distilled water for 7 days to assess the volumetric changes of the cements. The statistical significance of differences in the data was evaluated using analysis of variance and the Tukey test with a 5% significance level. Results: Bio- C Repair had a greater filling ability than MTA HP (p < 0.05). IRM was similar to Bio-C and MTA HP (p > 0.05). MTA HP presented the largest volumetric change (p < 0.05), showing more volume loss than Bio-C and IRM, which were similar (p > 0.05). Conclusions: Bio-C Repair is a new endodontic material with excellent filling capacity and low volumetric change. The gypsum model proposed for evaluating filling ability and volumetric changes by micro- CT had appropriate and reproducible results. This model may enhance the physicochemical evaluation of premixed bioceramic materials, which need moisture for setting. (AU)

• Processo FAPESP: 18/19665-6 - Efeito da aquisição e análise das imagens em micro-CT na avaliação das diferentes etapas do tratamento endodôntico em molares inferiores
• Beneficiário: Jáder Camilo Pinto
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• 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