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The adjunctive effect of photodynamic therapy for residual pockets in single-rooted teeth: a randomized controlled clinical trial

Lasers in Medical Science volume 28, pages 317–324 (2013)Cite this article

Abstract

Residual pockets are challenging sites that require additional periodontal therapy. The aim of this study was to evaluate the effect of a single photodynamic therapy (PDT) as an adjunct to scaling and root planning (SRP) in residual pockets in single-rooted teeth. A blind, split-mouth, randomized controlled clinical trial was conducted in systemically healthy subjects presenting at least two residual pockets (probing pocket depth (PPD) ≥5 mm with bleeding on probing (BoP)) in single root teeth in supportive periodontal therapy. The selected sites were assigned to receive (1) PDT + SRP or (2) SRP. In sites treated by PDT as adjunctive to SRP, the laser system included a handheld battery-operated diode laser with a wavelength of 660 nm, a power output of 60 mW, and energy density of 129 J/cm2, together with methylene blue as a photosensitizer (10 mg/ml). Clinical parameters were assessed at baseline and 3 months post-therapies. Clinical parameters improved significantly after both therapies (p < 0.05), whereas higher probing pocket depth reduction and clinical attachment level gain were observed in the PDT + SRP group at 3 months (p < 0.05). In addition, sites treated by the combined approach yielded a significant reduction in the number of sites with PPD <5 mm without BoP after 3 months compared to sites treated by conventional SRP alone (p < 0.05). PDT as an adjunctive to mechanical debridement demonstrated additional clinical benefits for residual pockets in single-rooted teeth and may be an alternative therapeutic strategy in supportive periodontal maintenance.

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Acknowledgments

This study was supported by FAPESP (São Paulo Research Foundation)—Processes 2010/51218-8.

Conflict of interest

The authors report no conflicts of interest related to this study.

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Affiliations

  1. Dental Research Division, School of Dentistry, Paulista University, Av. Dr. Bacelar, 1212, 4° andar, Vila Clementino, 04026-002, São Paulo, São Paulo, Brazil

    Gisele N. Campos, Suzana P. Pimentel, Fernanda V. Ribeiro, Renato C. V. Casarin, Fabiano R. Cirano, Cintia H. C. Saraceni & Márcio Z. Casati

  2. Depto de Odontologia, Universidade Paulista, UNIP, Av. Dr. Bacelar, 1212, 4° andar, Vila Clementino, 04026-002, São Paulo, SP, Brazil

    Márcio Z. Casati

Authors
  1. Gisele N. Campos
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  2. Suzana P. Pimentel
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  3. Fernanda V. Ribeiro
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  4. Renato C. V. Casarin
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  5. Fabiano R. Cirano
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  6. Cintia H. C. Saraceni
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  7. Márcio Z. Casati
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Correspondence to Márcio Z. Casati.

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Campos, G.N., Pimentel, S.P., Ribeiro, F.V. et al. The adjunctive effect of photodynamic therapy for residual pockets in single-rooted teeth: a randomized controlled clinical trial. Lasers Med Sci 28, 317–324 (2013). https://doi.org/10.1007/s10103-012-1159-3

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  • DOI: https://doi.org/10.1007/s10103-012-1159-3

Keywords

  • Chronic periodontitis
  • Periodontal pocket
  • Photochemotherapy therapy
  • Root planning