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Evaluation of Effectiveness of Photodynamic Therapy With Low-Level Diode Laser in Nonsurgical Treatment of Peri-Implantitis Publisher



Birang E1 ; Talebi Ardekani MR2 ; Rajabzadeh M3 ; Sarmadi G4 ; Birang R3 ; Gutknecht N5
Authors
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Authors Affiliations
  1. 1. School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Department of Periodontics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. 3. Torabinejad Dental Research Center, Department of Periodontics, School of dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Torabinejad Dental Research Center, Department of Oral and Maxillofacial Radiology, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
  5. 5. Department of Conservative Dentistry, Rwth Hospital, Aachen, Germany

Source: Journal of Lasers in Medical Sciences Published:2017


Abstract

Introduction: Side effects related to antibiotic therapy for peri-implantitis are rare in laser therapy (LT); therefore, the aim of this study was to evaluate the effectiveness of LT and photodynamic therapy (PDT) on patients with primary peri-implantitis. Methods: In this randomized clinical trial, 40 implants presenting primary peri-implantitis in 20 patients with a mean age of 52.6 years old were included using the simple sampling technique. Periodontal treatment comprising scaling and root planing (SRP) was accomplished for the whole mouth while mechanical debridement with titanium curettes and air polishing with sodium bicarbonate powder was accomplished around the implants. The implants were randomly divided into two groups and treated with LT (control) and PDT (test). The clinical indices were measured at baseline, 6 weeks and 3 months after treatment. Real-time polymerase chain reaction (PCR) was used for analysis of microbial samples at baseline and 3-month follow-up. Data were analyzed with SPSS 20, using repeated-measures analysis of variance (ANOVA) and Friedman's and Mann-Whitney tests (a = 0.05). Results: Both groups showed statistically significant improvements in terms of bleeding on probing (P < 0.001), probing pocket depth (PPD) (P = 0.006) and modified plaque index (P < 0.001), with no significant differences between the 2 groups (P > 0.05). The number of Aggregatibacter actinomycetemcomitans (P = 0.022), Tannerella forsythia (P = 0.038) and Porphyromonas gingivalis (P = 0.05) in the test group and Porphyromonas gingivalis (P = 0.015) in the control group significantly decreased. Conclusion: The results suggested that LT and PDT have significant short-term benefits in the treatment of primary peri-implantitis.
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