Abstract | 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 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.
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Authors | G Rutger Persson, Ann-Marie Roos-Jansåker, Christel Lindahl, Stefan Renvert |
Journal | Journal of periodontology
(J Periodontol)
Vol. 82
Issue 9
Pg. 1267-78
(Sep 2011)
ISSN: 1943-3670 [Electronic] United States |
PMID | 21417591
(Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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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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