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Photo-Activated Elimination of Aggregatibacter Actinomycetemcomitans in Planktonic Culture: Comparison of Photodynamic Therapy Versus Photothermal Therapy Method Publisher Pubmed



Fekrazad R1 ; Khoei F2 ; Bahador A3 ; Hakimiha N2
Authors
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Authors Affiliations
  1. 1. Laser Research Center of Medical Sciences (LRCMS), AJA University of Medical Sciences, Laser Research Center of Dentistry (LRCD), Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Laser Research Center of Dentistry (LRCD), Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Microbiology Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Source: Photodiagnosis and Photodynamic Therapy Published:2017


Abstract

Background Periodontal pathogens are the main factors responsible for periodontal diseases and considering the limitations of conventional mechanical debridement, new treatment approaches are under investigation. This study was designed to evaluate and compare the antibacterial effects of two different systems of photodynamic and photothermal therapy on Aggregatibacter actinomycetemcomitans as the main pathogen involved in aggressive Periodontitis. Methods Cultures of Aggregatibacter actinomycetemcomitans were exposed to 662 nm laser in presence of Radachlorin® photosensitizer (photodynamic group) or 810 nm laser in presence of EmunDo® photosensitizer (photothermal group), then bacterial suspension of each well in the study groups were diluted and subcultured on the surface of Muller-Hinton agar plates. subsequently the number of colony forming units per milliliter of the wells were determined and checked by analysis of variance and Tukey test (p < 0.05). Results Aggregatibacter actinomycetemcomitans suspensions showed significant reduction in both groups of photodynamic and photothermal therapy with no priority. Conclusion Based on the results of this study, photodynamic and photothermal therapy can be proposed as a new promising approaches for bacterial elimination in periodontal diseases. © 2017 Elsevier B.V.
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