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Title: GuttaFlow® Bioseal Cytotoxicity Assessment: In Vitro Study
Authors: Ferreira, Inês 
Laranjo, Mafalda 
Marto, Carlos Miguel 
Casalta-Lopes, João 
Serambeque, Beatriz 
Gonçalves, Ana Cristina 
Sarmento-Ribeiro, Ana Bela 
Carrilho, Eunice 
Botelho, Maria Filomena 
Paula, Anabela Baptista 
Ferreira, Manuel Marques 
Keywords: epoxy resins; tricalciumphosphate; cytotoxicity; cell viability; GuttaFlow® bioseal; AH26®
Issue Date: 19-Sep-2020
Publisher: MDPI
Project: UID/NEU/04539/2013 
Serial title, monograph or event: Molecules
Volume: 25
Issue: 18
Abstract: The sealers used for root canal treatment should be biocompatible for the peri-radicular tissues, to evaluate the cytotoxic effects of GuttaFlow® bioseal sealer and to compare them with AH26® epoxy resin. Culture media were conditioned with the GuttaFlow® bioseal and AH26® pellets. MDPC-23 odontoblast cell cultures were treated with conditioned medium and serial dilutions. To evaluate the metabolic activity and cellular viability, the MTT and SRB assays were performed. To determine the production of reactive oxygen species, the DHE and DCF-DA probes were used. Cell cycle and cell-death types were assessed by cytometry, and to evaluate the mineralization capacity, the Alizarin Red S coloration was used. Statistical analysis was performed using analysis of variance (ANOVA) when normality was found and Kruskal-Wallis on the opposite case. For the comparison with normality values, the Student t-test was used. Cells exposed to the GuttaFlow® bioseal conditioned medium maintained high metabolic activities, except at higher concentrations. Likewise, viability was maintained, but a significant decrease was observed after exposure to the highest concentration (p < 0.001), associated with cell death by late apoptosis and necrosis. When cell cultures were exposed to AH26®, metabolic activity was highly compromised, resulting in cell death. An imbalance in the production of peroxides and superoxide anion was observed. GuttaFlow® bioseal showed higher biocompatibility than AH26®.
ISSN: 1420-3049
DOI: 10.3390/molecules25184297
Rights: openAccess
Appears in Collections:FMUC Medicina - Artigos em Revistas Internacionais
I&D ICBR - Artigos em Revistas Internacionais
I&D CIBB - Artigos em Revistas Internacionais

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