Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Exploring different photosensitizers to optimize elimination of planktonic and biofilm forms of Enterococcus faecalis from infected root canal during antimicrobial photodynamic therapy

Thu Dec 1 17:20:43 2022

(2018) Exploring different photosensitizers to optimize elimination of planktonic and biofilm forms of Enterococcus faecalis from infected root canal during antimicrobial photodynamic therapy. Photodiagnosis and photodynamic therapy. pp. 206-211. ISSN 1873-1597 (Electronic) 1572-1000 (Linking)

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Official URL: https://www.ncbi.nlm.nih.gov/pubmed/30278277

Abstract

BACKGROUND: Despite the high success rate of endodontic treatment, failure may occur in some cases. In this case, Enterococcus faecalis is the most common species in endodontic treatment failure and post-treatment apical periodontitis. Therefore, a new adjunctive strategy is needed for the prevention of endodontic infections due to E. faecalis. The aim of the present study was to compare the antimicrobial and anti-biofilm activities of different common photosensitizers (PSs) for use in antimicrobial photodynamic therapy (aPDT) against E. faecalis. MATERIALS AND METHODS: E. faecalis strain ATCC 29212 was used as the tested strain and methylene blue (MB), toluidine blue O (TBO), indocyanine green (ICG), and curcumin (CUR) were used as PSs. Irradiation was carried out using diode laser and light emitting diode (LED) at wavelengths related to the above PSs. Then, antimicrobial and anti-biofilm activities were measured using the microbial viability assay and crystal violet test, respectively. RESULTS: aPDT with using the above PSs significantly decreased the CFU/mL count of E. faecalis compared to the control group (P < 0.05). The killing percentage of E. faecalis via PS mediated aPDT was 99.6, 98.2, 85.1, and 65.0 for CUR, ICG, TBO, and MB, respectively. aPDT using the above PSs significantly decreased the biofilm formation ability of E. faecalis compared to the control group (P < 0.05). The biofilm reduction percentage of the PSs was 68.4, 62.9, 59.0, and 47.6 for CUR, ICG, TBO, and MB, respectively. CONCLUSION: CUR and ICG mediated aPDT exhibited considerably more antimicrobial activity than other PSs, while TBO and MB demonstrated weaker anti-biofilm effects against E. faecalis compared to other PSs.

Item Type: Article
Creators:
CreatorsEmail
Pourhajibagher, M.UNSPECIFIED
Kazemian, H.UNSPECIFIED
Chiniforush, N.UNSPECIFIED
Hosseini, N.UNSPECIFIED
Pourakbari, B.UNSPECIFIED
Azizollahi, A.UNSPECIFIED
Rezaei, F.UNSPECIFIED
Bahador, A.UNSPECIFIED
Keywords: Antimicrobial photodynamic therapy Curcumin Enterococcus faecalis Indocyanine green Methylene blue Toluidine blue O
Divisions:
Page Range: pp. 206-211
Journal or Publication Title: Photodiagnosis and photodynamic therapy
Journal Index: Pubmed
Volume: 24
Identification Number: https://doi.org/10.1016/j.pdpdt.2018.09.014
ISSN: 1873-1597 (Electronic) 1572-1000 (Linking)
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/953

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