Cytocompatibility and cell proliferation evaluation of calcium phosphate-based root canal sealers
Mestieri Leticia Boldrin, Zaccara Ivana Maria, Pinheiro Lucas Siqueira, Kopper Patricia Maria Polli, Grecca Fabiana Soares, Barletta Fernando Branco,
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( Mestieri Leticia Boldrin ) - Federal University of Rio Grande do Sul School of Dentistry Department of Conservative Dentistry
( Zaccara Ivana Maria ) - Federal University of Rio Grande do Sul School of Dentistry Department of Conservative Dentistry
( Pinheiro Lucas Siqueira ) - Federal University of Rio Grande do Sul School of Dentistry Department of Conservative Dentistry
( Kopper Patricia Maria Polli ) - Federal University of Rio Grande do Sul School of Dentistry Department of Conservative Dentistry
( Grecca Fabiana Soares ) - Federal University of Rio Grande do Sul School of Dentistry Department of Conservative Dentistry
( Barletta Fernando Branco ) - Lutheran University of Brazil - ULBRA School of Dentistry
Abstract
Objectives: This study aimed to evaluate the cell viability and migration of Endosequence Bioceramic Root Canal Sealer (BC Sealer) compared to MTA Fillapex and AH Plus.
Materials and Methods: BC Sealer, MTA Fillapex, and AH Plus were placed in contact with culture medium to obtain sealers extracts in dilution 1:1, 1:2 and 1:4. 3T3 cells were plated and exposed to the extracts. Cell viability and migration were assessed by 3-(4,5-dimethyl-thiazoyl)-2,5-diphenyl-tetrazolium bromide (MTT) and Scratch assay, respectively. Data were analyzed by Kruskal-Wallis and Dunn's test (p < 0.05).
Results: The MTT assay revealed greater cytotoxicity for AH Plus and MTA Fillapex at 1:1 dilution when compared to control (p < 0.05). At 1:2 and 1:4 dilutions, all sealers were similar to control (p > 0.05) and MTA Fillapex was more cytotoxic than BC Sealer (p < 0.05). Scratch assay demonstrated the continuous closure of the wound according to time. At 30 hours, the control group presented closure of the wound (p < 0.05). At 36 hours, only BC Sealer presented the closure when compared to AH Plus and MTA Fillapex (p < 0.05). At 42 hours, AH Plus and MTA Fillapex showed a wound healing (p > 0.05).
Conclusions: All tested sealers demonstrated cell viability highlighting BC Sealer, which showed increased cell migration capacity suggesting that this sealer may achieve better tissue repair when compared to other tested sealers.
키워드
Root canal; Cell migration; Fibroblast; Endodontics
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