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Photodynamic therapy of persistent pockets in maintenance patients—a clinical study

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Abstract

The aim of this study was to compare the short-term performance of a session of single photodynamic therapy (PDT) and of a conventional ultrasonic debridement (UST) in persistent pockets of maintenance patients. In a prospective, randomized, controlled, single-blind clinical study, patients with chronic periodontitis with at least two persistent pockets (>4 mm) were enrolled. They were treated either with UST (n = 29) or PDT (n = 25). Clinical and microbiological examinations were performed at baseline and after 3 month. For UST, the mean probing depth was reduced from 5.3 to 4.5 mm (p = <0.001) and for PDT from 5.3 to 4.7 mm (p < 0.001) with no difference between the two treatment modalities. Microbial counts were significantly reduced about 30% to 40% immediately after debridement but returned to baseline values at month 3 irrespective of treatment. PDT is not superior to conventional mechanical treatment of persistent pockets, but it may be a meaningful therapeutic alternative; the clinical effects were too minor to draw a definitive conclusion.

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Acknowledgments

This study was, in part supported, by Sirona, Bensheim/Germany. Mandy Rothenburg treated the patients.

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Clinic for Conservative Dentistry and Periodontology, Unit of Periodontology, School for Dental Medicine, Christian-Albrechts-University, Kiel, Germany

    Andreas Rühling

  2. Department of Restorative Dentistry, Periodontology and Endodontology, Unit of Periodontology, Ernst-Moritz-Arndt-University, Greifswald, Germany

    Jutta Fanghänel, Mohammad Houshmand, Alexander Kuhr, Peter Meisel, Christian Schwahn & Thomas Kocher

  3. Clinic for Conservative Dentistry and Periodontology, School for Dental Medicine, Christian-Albrechts-University, Arnold-Heller-Str. 16, 24105, Kiel, Germany

    Andreas Rühling

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  1. Andreas Rühling
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Correspondence to Andreas Rühling.

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Rühling, A., Fanghänel, J., Houshmand, M. et al. Photodynamic therapy of persistent pockets in maintenance patients—a clinical study. Clin Oral Invest 14, 637–644 (2010). https://doi.org/10.1007/s00784-009-0347-4

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  • DOI: https://doi.org/10.1007/s00784-009-0347-4

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