Evaluation of efficacy of new chalcone-based endodontic irrigant against dual biofilm Enterococcus faecalis and Candida albicans : a study in vitro

[Abstract] The aim of this research was to develop a chalcone-based endodontic irrigant for cleaning and disinfecting the root canal. Minimal inhibitory concentration (MIC) experiments in C. albicans and E. faecalis strains with different aminochalcones (AM) were carried out, and the compound that p...

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Veröffentlicht in:Odontology 2023-07, Vol.111 (3), p.573-579
Hauptverfasser: Graciani, Joice, Rosalen, Pedro Luiz, de Oliveira Chaves dos Santos, Emmanuely, Rocha, Kellyth Andrade Pereira, Balen, Bruno Rafael Teixeira, Garcia, Mayara Aparecida Rocha, Lazarini, Josy Goldoni, da Silva, Diego Romario, Carvalho, Suzana Gonçalves, Regasini, Luís Octávio, Chorilli, Marlus, Orlandi Sardi, Janaina de Cássia
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container_end_page 579
container_issue 3
container_start_page 573
container_title Odontology
container_volume 111
creator Graciani, Joice
Rosalen, Pedro Luiz
de Oliveira Chaves dos Santos, Emmanuely
Rocha, Kellyth Andrade Pereira
Balen, Bruno Rafael Teixeira
Garcia, Mayara Aparecida Rocha
Lazarini, Josy Goldoni
da Silva, Diego Romario
Carvalho, Suzana Gonçalves
Regasini, Luís Octávio
Chorilli, Marlus
Orlandi Sardi, Janaina de Cássia
description [Abstract] The aim of this research was to develop a chalcone-based endodontic irrigant for cleaning and disinfecting the root canal. Minimal inhibitory concentration (MIC) experiments in C. albicans and E. faecalis strains with different aminochalcones (AM) were carried out, and the compound that presented the best activity against both pathogens was chosen. The formulation of an endodontic irrigant was elaborated, tested in mono and dual specie biofilms. Disks were sterilized and then incubated with E. faecalis, C. albicans and E. faecalis and C. albicans mixed for 72 h for biofilm maturation. After contamination, samples were divided in 4 experimental groups and 2 positive control group as follows: Group1: Irrigant; Group2: Irrigant + AM-38; Group3: Chlorhexidine 2% (positive control) and, Group4: 1.0% sodium hypochlorite (positive control). The samples were analyzed by CFU/ml count. The sample was taken to sonicador to remove the cells and then plated. The toxicity was determined in vitro with human gingival fibroblast cells (HGF) and in vivo using the Galleria mellonella model. Formulation showed antimicrobial activity, with MIC on C. albicans 15.6 and E. faecalis 7.8 μg/ml. Treatment with formulation in concentration 156 μg/ml significantly reduced mono or dual species biofilm formation and viability (p < 0.05). The results were significant against C. albicans and E. faecalis and did not show toxicity in cells and G. mellonella. In general, the formulation showed effective antibiofilm activity, significantly reducing microorganisms, opening paths in search of new endodontic irrigants.
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Minimal inhibitory concentration (MIC) experiments in C. albicans and E. faecalis strains with different aminochalcones (AM) were carried out, and the compound that presented the best activity against both pathogens was chosen. The formulation of an endodontic irrigant was elaborated, tested in mono and dual specie biofilms. Disks were sterilized and then incubated with E. faecalis, C. albicans and E. faecalis and C. albicans mixed for 72 h for biofilm maturation. After contamination, samples were divided in 4 experimental groups and 2 positive control group as follows: Group1: Irrigant; Group2: Irrigant + AM-38; Group3: Chlorhexidine 2% (positive control) and, Group4: 1.0% sodium hypochlorite (positive control). The samples were analyzed by CFU/ml count. The sample was taken to sonicador to remove the cells and then plated. The toxicity was determined in vitro with human gingival fibroblast cells (HGF) and in vivo using the Galleria mellonella model. 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subjects Antimicrobial activity
Biofilms
Candida albicans
Chalcones - pharmacology
Chlorhexidine
Contamination
Dental Pulp Cavity
Dentistry
Enterococcus faecalis
Humans
Medicine
Minimum inhibitory concentration
Oral and Maxillofacial Surgery
Original Article
Root Canal Irrigants - pharmacology
Root canals
Sodium hypochlorite
Sodium Hypochlorite - pharmacology
Toxicity
title Evaluation of efficacy of new chalcone-based endodontic irrigant against dual biofilm Enterococcus faecalis and Candida albicans : a study in vitro
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