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Physicochemical properties and bioactive potential of a new epoxy resin-based root canal sealer
Department of Restorative DentistryTanomaru-Filho, Mario; Department of Restorative DentistryCristine Prado, Maiby; Department of Restorative DentistryTorres, Fernanda Ferrari Esteves; Department of Restorative DentistryViapiana, Raqueli; Department of Restorative DentistryPivoto-João, Mariana Mena Barreto; Department of Restorative DentistryGuerreiro-Tanomaru, Juliane Maria.
  • Department of Restorative DentistryTanomaru-Filho, Mario; Universidade Estadual Paulista. School of Dentistry. Department of Restorative DentistryTanomaru-Filho, Mario. Araraquara. BR
  • Department of Restorative DentistryCristine Prado, Maiby; Universidade Estadual Paulista. School of Dentistry. Department of Restorative DentistryCristine Prado, Maiby. Araraquara. BR
  • Department of Restorative DentistryTorres, Fernanda Ferrari Esteves; Universidade Estadual Paulista. School of Dentistry. Department of Restorative DentistryTorres, Fernanda Ferrari Esteves. Araraquara. BR
  • Department of Restorative DentistryViapiana, Raqueli; Universidade Estadual Paulista. School of Dentistry. Department of Restorative DentistryViapiana, Raqueli. Araraquara. BR
  • Department of Restorative DentistryPivoto-João, Mariana Mena Barreto; Universidade Estadual Paulista. School of Dentistry. Department of Restorative DentistryPivoto-João, Mariana Mena Barreto. Araraquara. BR
  • Department of Restorative DentistryGuerreiro-Tanomaru, Juliane Maria; Universidade Estadual Paulista. School of Dentistry. Department of Restorative DentistryGuerreiro-Tanomaru, Juliane Maria. Araraquara. BR
Braz. dent. j ; 30(6): 563-568, Nov.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1055452
ABSTRACT
Abstract The aim of this study was to evaluate physicochemical properties and bioactive potential of Sealer Plus, in comparison with MTA Fillapex, Sealapex and AH Plus. Setting time, flow, and radiopacity were evaluated based on ISO 6876 Standard. Flow was also assessed in area (mm²). The solubility and volumetric change of the sealers were evaluated after 7 and 30 days of immersion in distilled water. Solubility was evaluated by the difference in mass of materials before and after immersion. Volumetric change was evaluated by using microcomputed tomography (micro-CT). The bioactive potential was observed by Scanning Electron Microscopy (SEM) after immersion in PBS. Data were compared using ANOVA and Tukey tests (α=0.05). Sealer Plus presented the shortest setting time (196 min.) and Sealapex the longest (912 min.) (p<0.05). AH Plus showed the highest radiopacity (9.5 mm Al) and MTA Fillapex the lowest (2.7 mm Al) (p<0.05). All the sealers presented flow in accordance with ISO 6876/2012 (>17 mm). Sealer Plus showed low solubility and volumetric change (<1%), and MTA Fillapex showed the highest solubility (>25%), and volumetric change (>4%) after all time intervals (p<0.05). MTA Fillapex was the only sealer that showed bioactive potential. In conclusion, Sealer Plus presented proper physicochemical properties. However, this sealer did not present a bioactive potential.
RESUMO
Resumo O objetivo deste estudo foi avaliar as propriedades físico-químicas e o potencial bioativo de Sealer Plus, em comparação com MTA Fillapex, Sealapex e AH Plus. Tempo de presa, escoamento e radiopacidade foram avaliados com base nas normas ISO 6876. O escoamento foi também avaliado em área (mm²). A solubilidade e a alteração volumétrica dos cimentos foram avaliadas após 7 e 30 dias de imersão em água destilada. A solubilidade foi analisada pela diferença entre as massas dos cimentos antes e após imersão. A alteração volumétrica foi avaliada por meio de microtomografia computadorizada (micro-CT). O potencial bioativo dos cimentos foi observado por Microscopia Eletrônica de Varredura (MEV) após imersão em PBS. Os dados foram comparados usando os testes ANOVA e Tukey (α=0.05). Sealer Plus apresentou o tempo de presa mais curto (196 min.) e Sealapex o mais longo (912 min.) (p<0.05). AH Plus mostrou a radiopacidade mais alta (9.5 mm Al) e MTA Fillapex a mais baixa (2.7 mm Al) (p<0.05). Todos os cimentos tiveram escoamento de acordo com as normas ISO 6876/2012 (>17 mm). Sealer Plus mostrou baixos valores de solubilidade e alteração volumétrica (<1%) e MTA Fillapex teve os valores mais altos de solubilidade (>25%) e alteração volumétrica (>4%) em todos os períodos avaliados (p<0.05). MTA Fillapex foi o único cimento que mostrou potencial bioativo. Como conclusão, Sealer Plus apresentou propriedades físico-químicas adequadas, entretanto, não apresentou potencial bioativo.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Epoxy Resins Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual Paulista/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Epoxy Resins Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual Paulista/BR