Physicochemical Properties and Volumetric Change of Silicone/Bioactive Glass and Calcium Silicate-based Endodontic Sealers

Autor(es)

Tanomaru-Filho, Mario ^[1] ; Esteves Torres, Fernanda Ferrari ^[1] ; Chavez-Andrade, Gisselle Moraima ^[1] ; de Almeida, Madelise ^[1] ; Navarro, Luciana Guilherme ^[1] ; Steier, Liviu ^[2] ; Guerreiro-Tanomaru, Juliane Maria ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Araraquara Dent Sch, Dept Restorat Dent, Araraquara, SP - Brazil

^[2] Univ Warwick, Warwick Med Sch, Coventry, W Midlands - England

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ENDODONTICS; v. 43, n. 12, p. 2097-2101, DEC 2017.
• Citações Web of Science: 9

Resumo

Introduction: This study evaluated setting time (ST), radiopacity, pH, flow, solubility, and volumetric change (VC) of a silicone, gutta-percha, and bioactive glass-based sealer, GuttaFlow Bioseal (GFB), and a calcium silicate-based sealer, TotalFill BC Sealer (TFBC), in comparison with AH Plus. Methods: ST and flow were evaluated in accordance with the ISO 6876 Standard. pH was evaluated after different time intervals (1, 3, 7, 14, 21, and 28 days). Radiopacity was evaluated by radiographic analysis in millimeters of aluminum. Solubility was evaluated by means of mass loss (%) after 7 and 30 days of immersion in distilled water. VC was evaluated by micro-computed tomography, by using cavities 3 mm deep and 1 mm in diameter in acrylic resin, filled with the materials. The materials were evaluated after setting and after 7 and 30 days of immersion in distilled water. The data were submitted to analysis of variance and Tukey statistical tests (P < .05). Results: TFBC demonstrated the highest pH and solubility. GFB had the shortest ST, and lowest radiopacity and flow values. VC was similar for the sealers in both time intervals. Conclusions: TFBC presented the highest pH and solubility, but showed similar VC to GFB and AH Plus. GFB showed proper physicochemical properties. Micro-computed tomography complements the physicochemical analysis of endodontic sealers. (AU)

• 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
• Processo FAPESP: 15/03437-6 - Avaliação do preparo reciprocante, da obturação dos canais radiculares, e das propriedades físico-químicas e biológicas de materiais obturadores e reparadores
• Beneficiário: Mario Tanomaru Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular