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Microbiologic results after non-surgical erbium-doped:yttrium, aluminum, and garnet laser or air-abrasive treatment of peri-implantitis: a randomized clinical trial.

AbstractBACKGROUND:
The purpose of this study is to assess clinical and microbiologic effects of the non-surgical treatment of peri-implantitis lesions using either an erbium-doped:yttrium, aluminum, and garnet (Er:YAG) laser or an air-abrasive subgingival polishing method.
METHODS:
In a 6-month clinical trial, 42 patients with peri-implantitis were treated at one time with an Er:YAG laser or an air-abrasive device. Routine clinical methods were used to monitor clinical conditions. Baseline and 6-month intraoral radiographs were assessed with a software program. The checkerboard DNA-DNA hybridization method was used to assess 74 bacterial species from the site with the deepest probing depth (PD) at the implant. Non-parametric tests were applied to microbiology data.
RESULTS:
PD reductions (mean ± SD) were 0.9 ± 0.8 mm and 0.8 ± 0.5 mm in the laser and air-abrasive groups, respectively (not significant). No baseline differences in bacterial counts between groups were found. In the air-abrasive group, Pseudomonas aeruginosa, Staphylococcus aureus, and Staphylococcus anaerobius were found at lower counts at 1 month after therapy (P <0.001) and with lower counts in the laser group for Fusobacterium nucleatum naviforme (P = 0.002), and Fusobacterium nucleatum nucleatum (P = 0.002). Both treatments failed to reduce bacterial counts at 6 months. Porphyromonas gingivalis counts were higher in cases with progressive peri-implantitis (P <0.001).
CONCLUSIONS:
At 1 month, P. aeruginosa, S. aureus, and S. anaerobius were reduced in the air-abrasive group, and Fusobacterium spp. were reduced in the laser group. Six-month data demonstrated that both methods failed to reduce bacterial counts. Clinical improvements were limited.
AuthorsG Rutger Persson, Ann-Marie Roos-Jansåker, Christel Lindahl, Stefan Renvert
JournalJournal of periodontology (J Periodontol) Vol. 82 Issue 9 Pg. 1267-78 (Sep 2011) ISSN: 1943-3670 [Electronic] United States
PMID21417591 (Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Topics
  • Actinomyces (isolation & purification)
  • Aged
  • Aggregatibacter actinomycetemcomitans (isolation & purification)
  • Air Abrasion, Dental (methods)
  • Alveolar Bone Loss (microbiology, radiotherapy, therapy)
  • Bacteria (classification)
  • Bacterial Load
  • Bacteroides (isolation & purification)
  • Dental Polishing (methods)
  • Female
  • Follow-Up Studies
  • Fusobacterium nucleatum (classification)
  • Gingival Hemorrhage (microbiology, radiotherapy, therapy)
  • Humans
  • Lasers, Solid-State (therapeutic use)
  • Longitudinal Studies
  • Low-Level Light Therapy (methods)
  • Male
  • Peri-Implantitis (microbiology, radiotherapy, therapy)
  • Periodontal Pocket (microbiology, radiotherapy, therapy)
  • Porphyromonas gingivalis (isolation & purification)
  • Pseudomonas aeruginosa (isolation & purification)
  • Single-Blind Method
  • Staphylococcus (classification)
  • Staphylococcus aureus (isolation & purification)
  • Treatment Outcome

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