Reduction of by Chlorella-Mediated Antimicrobial Photodynamic Therapy.

Journal: Journal of lasers in medical sciences
Published Date:

Abstract

Nowadays, antimicrobial photodynamic therapy (aPDT) has been introduced as one of the minimally invasive methods for disinfection of the surfaces of dental implants. Being derived from seaweed, Chlorella has been used as a photosensitizer in this study. This study aimed to investigate the impacts of aPDT with Chlorella on the rate of reduction of in vitro. The minimum inhibitory concentration of Chlorella, the sublethal exposure to 660 nm diode laser irradiation, and the minimum sublethal dose of aPDT utilizing Chlorella against were determined. Finally, the CFU/mL value of each plate was calculated. Then, Tukey HSD and one-way ANOVA tests were utilized for comparison the number of colonies after the interventions. A concentration of 250 µg/mL of Chlorella at an irradiation time of 3 minutes, was identified as a sublethal dose of aPDT for the reduction of . In contrast, the application of aPDT utilizing a 660 nm diode laser for 4 minutes in combination with Chlorella at a final concentration of 500 µg/mL, demonstrated significantly greater efficacy in reducing compared to the other experimental groups (<0.001). Chlorella 500 µg/mL mediated aPDT (660 nm, 4 minutes) has a significant effect on reducing count.

Authors

  • Mohammad Reza Karimi
    Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
  • Navid Pourahmad
    Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
  • Shima Afrasiabi
    Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
  • Ardavan Etemadi
    Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
  • Nasim Chiniforush
    Dentofacial Deformities Research Center, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Keywords

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