Effect of Photodynamic Therapy Using Toluidine Blue on Eikenella corrodens and Aggregatibacter Actinomycetemcomitans Biofilms Adhered to Titanium Discs: An In Vitro Study

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KARIMI MOHAMMAD REZA; MONTAZERI MOSTAFA; Harandi Mohammad; Aghazadeh Laleh; Aghazadeh Ladan

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Journal: JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES Year:2018 | Volume:3 | Issue:4 Page(s): 18-25

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Title

Effect of Photodynamic Therapy Using Toluidine Blue on Eikenella corrodens and Aggregatibacter Actinomycetemcomitans Biofilms Adhered to Titanium Discs: An In Vitro Study

Author(s)

Keywords

Decontamination

Titanium

Photodynamic Therapy

Eikenella corrodens

Aggregatibacter actinomycetemcomitans

Abstract

Background and aim: Antimicrobial Photodynamic Therapy (aPDT) has been suggested as a novel technique for Decontamination of exposed implant surfaces. We aimed to evaluate the effect of aPDT on sandblasted, large-grit, acid-etched (SLA) Titanium discs contaminated with Eikenella corrodens (Ec) and Aggregatibacter actinomycetemcomitans (Aa). Materials and methods: In this in-vitro study, twenty-four sterile SLA Titanium discs were contaminated with Ec (PTCC® 1391) and Aa (ATCC® 33384) and were randomly divided into the following groups: aPDT-treated group consisted of 12 discs submerged in 1 ml of toluidine blue and exposed to a low-level laser; negative control group comprised of 6 discs rinsed with physiological saline, and positive control group included 6 discs submerged in 2 ml of 0. 2% chlorhexidine (CHX). After serial dilution, each sample was cultivated in an anaerobic environment (24 hours for Ec and 48 hours for Aa). Microbial reduction rate was calculated through colony-forming unit (CFU) counting according to Kruskal-Wallis test. Results: The number of colonies for both bacterial strains in the aPDT-treated group was significantly reduced compared to the negative control group, showing the bactericidal potential of aPDT with toluidine blue (P<0. 0001). The 0. 2% CHX group showed a significantly smaller amount of colonies (CFU=1. 089×107 for Ec and 3×107 for Aa) compared to the aPDT-treated group (CFU=3. 73± 1. 19×109 for Ec and 52± 13. 6×105 for Aa; P<0. 00001). Conclusion: aPDT with toluidine blue significantly reduces Ec and Aa contamination of SLA Titanium discs; however, 0. 2% CHX showed the highest bactericidal potential and is still considered the gold standard in antimicrobial treatment of peri-implant diseases.

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Effect of UV-Photofunctionalization on Bioactivity of Titanium to Promote Human Mesenchymal Stem Cells

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APA: Copy

KARIMI, MOHAMMAD REZA, MONTAZERI, MOSTAFA, Harandi, Mohammad, Aghazadeh, Laleh, & Aghazadeh, Ladan. (2018). Effect of Photodynamic Therapy Using Toluidine Blue on Eikenella corrodens and Aggregatibacter Actinomycetemcomitans Biofilms Adhered to Titanium Discs: An In Vitro Study. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES, 3(4), 18-25. SID. https://sid.ir/paper/354497/en

Vancouver: Copy

KARIMI MOHAMMAD REZA, MONTAZERI MOSTAFA, Harandi Mohammad, Aghazadeh Laleh, Aghazadeh Ladan. Effect of Photodynamic Therapy Using Toluidine Blue on Eikenella corrodens and Aggregatibacter Actinomycetemcomitans Biofilms Adhered to Titanium Discs: An In Vitro Study. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES[Internet]. 2018;3(4):18-25. Available from: https://sid.ir/paper/354497/en

IEEE: Copy

MOHAMMAD REZA KARIMI, MOSTAFA MONTAZERI, Mohammad Harandi, Laleh Aghazadeh, and Ladan Aghazadeh, “Effect of Photodynamic Therapy Using Toluidine Blue on Eikenella corrodens and Aggregatibacter Actinomycetemcomitans Biofilms Adhered to Titanium Discs: An In Vitro Study,” JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES, vol. 3, no. 4, pp. 18–25, 2018, [Online]. Available: https://sid.ir/paper/354497/en

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