Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms

Aim: The aim of this study is to determine the antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern against some root canal microorganisms compared to conventional root canal irrigants. Settings and Design: An in vitro laboratory study at the University of Nairobi. Materi...

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Main Authors: Susan Wanjiku Maina, Elizabeth Dimba
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2021-01-01
Series:Endodontology
Subjects:
Online Access:http://www.endodontologyonweb.org/article.asp?issn=0970-7212;year=2021;volume=33;issue=4;spage=221;epage=226;aulast=Maina
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author Susan Wanjiku Maina
Elizabeth Dimba
author_facet Susan Wanjiku Maina
Elizabeth Dimba
author_sort Susan Wanjiku Maina
collection DOAJ
description Aim: The aim of this study is to determine the antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern against some root canal microorganisms compared to conventional root canal irrigants. Settings and Design: An in vitro laboratory study at the University of Nairobi. Materials and Methods: E. divinorum branches were collected, dried, and ground into coarse powder. The aqueous filtrates were lipolyzed while the ethanol filtrates were reduced under vacuum and oven-dried into powder. Growth inhibition of cell cultures from pure strains of Enterococcus faecalis (ATCC® 29212™), Streptococcus mutans (ATCC ®25175™), Staphylococcus aureus (ATCC® 25923™), Fusobacterium nucleatum (ATCC®25586™), Lactobacillus acidophilus (ATCC® 4356™), and Candida albicans (ATCC® 24433™) by the extracts were determined using tenfold liquid microdilution incubated for 24 and 48 h at 37°C. Cytotoxicity of the extracts was compared to those of 5.25% sodium hypochlorite, 2% chlorhexidine gluconate, and 17% ethylenediaminetetraacetic acid (EDTA). The one-way analysis of variance and Tukey's HSD test were used to test for differences between the mean growth inhibition of the extracts and the controls. Results: Fifty mg/ml ethanol extract had the highest growth inhibition at 99% ±3.04, 95% confidence interval (CI) (9.24, 100.755) against F. nucleatum followed by S. aureus at 97.22% ±3.77, 95% CI (95.04, 99.39) for 48 h incubation. S. mutans, L. acidophilus, and C. albicans showed resistance to the cytotoxic effects of the plant extracts. The mean growth inhibitions of 50 mg/ml ethanol extract against E. faecalis, and S. aureus were similar to those of 5.25% sodium hypochlorite and 17% EDTA for 24 h incubation while being higher against F. nucleatum at P < 0.01(Tukey's HSD). Conclusion: Fifty mg/ml E. divinorum extracts showed growth inhibition against E. faecalis, S. aureus, and F. nucleatum which was similar to the efficacy of 5.25% sodium hypochlorite. S. mutans, L. acidophilus, and C. albicans showed resistance to the cytotoxic effects of the extracts.
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spelling doaj.art-35b389ce625e41b4bec6b8d31697e0502022-12-22T04:12:25ZengWolters Kluwer Medknow PublicationsEndodontology0970-72122021-01-0133422122610.4103/endo.endo_55_21Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganismsSusan Wanjiku MainaElizabeth DimbaAim: The aim of this study is to determine the antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern against some root canal microorganisms compared to conventional root canal irrigants. Settings and Design: An in vitro laboratory study at the University of Nairobi. Materials and Methods: E. divinorum branches were collected, dried, and ground into coarse powder. The aqueous filtrates were lipolyzed while the ethanol filtrates were reduced under vacuum and oven-dried into powder. Growth inhibition of cell cultures from pure strains of Enterococcus faecalis (ATCC® 29212™), Streptococcus mutans (ATCC ®25175™), Staphylococcus aureus (ATCC® 25923™), Fusobacterium nucleatum (ATCC®25586™), Lactobacillus acidophilus (ATCC® 4356™), and Candida albicans (ATCC® 24433™) by the extracts were determined using tenfold liquid microdilution incubated for 24 and 48 h at 37°C. Cytotoxicity of the extracts was compared to those of 5.25% sodium hypochlorite, 2% chlorhexidine gluconate, and 17% ethylenediaminetetraacetic acid (EDTA). The one-way analysis of variance and Tukey's HSD test were used to test for differences between the mean growth inhibition of the extracts and the controls. Results: Fifty mg/ml ethanol extract had the highest growth inhibition at 99% ±3.04, 95% confidence interval (CI) (9.24, 100.755) against F. nucleatum followed by S. aureus at 97.22% ±3.77, 95% CI (95.04, 99.39) for 48 h incubation. S. mutans, L. acidophilus, and C. albicans showed resistance to the cytotoxic effects of the plant extracts. The mean growth inhibitions of 50 mg/ml ethanol extract against E. faecalis, and S. aureus were similar to those of 5.25% sodium hypochlorite and 17% EDTA for 24 h incubation while being higher against F. nucleatum at P < 0.01(Tukey's HSD). Conclusion: Fifty mg/ml E. divinorum extracts showed growth inhibition against E. faecalis, S. aureus, and F. nucleatum which was similar to the efficacy of 5.25% sodium hypochlorite. S. mutans, L. acidophilus, and C. albicans showed resistance to the cytotoxic effects of the extracts.http://www.endodontologyonweb.org/article.asp?issn=0970-7212;year=2021;volume=33;issue=4;spage=221;epage=226;aulast=Mainaaqueouseuclea divinorum ethanol extractsroot canal microorganisms
spellingShingle Susan Wanjiku Maina
Elizabeth Dimba
Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms
Endodontology
aqueous
euclea divinorum
ethanol extracts
root canal microorganisms
title Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms
title_full Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms
title_fullStr Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms
title_full_unstemmed Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms
title_short Antimicrobial efficacy of aqueous and ethanol extracts of Euclea divinorum Hiern on tooth root canal microorganisms
title_sort antimicrobial efficacy of aqueous and ethanol extracts of euclea divinorum hiern on tooth root canal microorganisms
topic aqueous
euclea divinorum
ethanol extracts
root canal microorganisms
url http://www.endodontologyonweb.org/article.asp?issn=0970-7212;year=2021;volume=33;issue=4;spage=221;epage=226;aulast=Maina
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