Abstract
Dental cements are widely used in the clinical routine, specifically for root canal sealing. Within this context, it is expected that these materials present antimicrobial activity, since it would help in the prevention of apical and periapical infections. The present study aimed to comparatively verify the antimicrobial activity of four dental cements against microorganisms that are routinely isolated from endodontic infections. Reference strains of Enterococcus faecalis, Candida albicans and Escherichia coli were submitted to the agar diffusion test and to modified direct contact test using four different sealers: an eugenol zinc oxide compound, an epoxy resin associated to calcium hydroxide and bismuth, a mineral trioxide aggregate (MTA) and a bioceramics. Different E. coli, C. albicans and E. faecalis growth inhibition profiles were observed in the agar diffusion assay. In the direct contact test, the bioceramics presented a higher microbicide activity on all microorganisms tested herein. Dental cements have different antimicrobial activities, being that the bioceramics present the most consistent antimicrobial activity, and that the direct contact test presented more uniform results than the agar diffusion test. This study reveals the antimicrobial activities of different cements and allow dentists to decide which material to employ in their daily practice.
Data availability
The data that support the findings of this study are available on request from the corresponding author, RDP.
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Acknowledgements
The authors are grateful to Francisca Soares (LABIMUNO-UFBA) for technical assistance.
Funding
This work was supported by the Fundação de Apoio à Pesquisa e Extensão (FAPEX), through continuous resources obtained from extension projects. RDP is a Technical Development fellow from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ—Proc. 310058/2022-8).
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ARS, CFA and LEL conducted the experimental work. ARS and SEA wrote the manuscript. DBA and RDP critically reviewed the manuscript. RM and RDP supervised the project. All authors read and approved the final version of the manuscript.
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Sokolonski, A.R., Amorim, C.F., Almeida, S.R. et al. Comparative antimicrobial activity of four different endodontic sealers. Braz J Microbiol 54, 1717–1721 (2023). https://doi.org/10.1007/s42770-023-01003-4
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DOI: https://doi.org/10.1007/s42770-023-01003-4