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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
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2011 (English)In: Journal of Periodontology, ISSN 0022-3492, E-ISSN 1943-3670, Vol. 82, no 9, 1267-1278 p.Article in journal (Refereed) Published
Abstract [en]

Background: 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 periimplantitis 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 groupswere found. In the air-abrasive group, Pseudomonas aeruginosa, Staphylococcus aureus, andStaphylococcus anaerobius were found at lower counts at 1 month after therapy (P <0.001) and with lower counts in the laser group for Fusobacteriumnucleatumnaviforme( 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.

Place, publisher, year, edition, pages
American Academy of Periodontology , 2011. Vol. 82, no 9, 1267-1278 p.
Keyword [en]
Clinical trial, Infection control, Laser, Microbiology
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:bth-7389DOI: 10.1902/jop.2011.100660ISI: 000295726000005Local ID: oai:bth.se:forskinfo0F143972A9B839F8C12579740046F2AFOAI: oai:DiVA.org:bth-7389DiVA: diva2:834997
Available from: 2012-09-18 Created: 2011-12-28 Last updated: 2015-06-30Bibliographically approved

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