Abstract | BACKGROUND: MATERIAL AND METHODS: Thirty-seven subjects (mean age 61.5; S.D+/-12.4), with one implant each, demonstrating peri-implantitis were randomized, and those treated either with titanium hand-instruments or with an ultrasonic device were enrolled. Data were obtained before treatment, and at 1, 3, and 6 months. Parametric and non-parametric statistics were used. RESULTS: Thirty-one subjects completed the study. The mean bone loss at implants in both groups was 1.5 mm (SD +/-1.2 mm). No group differences for plaque or gingival indices were found at any time point. Baseline and 6-month mean probing pocket depths ( PPD) at implants were 5.1 and 4.9 mm (p=0.30) in both groups. Plaque scores at treated implants decreased from 73% to 53% (p<0.01). Bleeding scores also decreased (p<0.01), with no group differences. No differences in the total bacterial counts were found over time. Higher total bacterial counts were found immediately after treatment (p<0.01) and at 1 week for ultrasonic-treated implants (p<0.05). CONCLUSIONS: No group differences were found in the treatment outcomes. While plaque and bleeding scores improved, no effects on PPD were identified.
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Authors | Stefan Renvert, Emelie Samuelsson, Christel Lindahl, Gösta Rutger Persson |
Journal | Journal of clinical periodontology
(J Clin Periodontol)
Vol. 36
Issue 7
Pg. 604-9
(Jul 2009)
ISSN: 1600-051X [Electronic] United States |
PMID | 19538334
(Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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Chemical References |
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Topics |
- Aged
- Alveolar Bone Loss
(etiology, therapy)
- Analysis of Variance
- Debridement
(instrumentation, methods)
- Dental Implants
(adverse effects)
- Double-Blind Method
- Female
- Gingival Hemorrhage
(etiology, prevention & control)
- Humans
- Male
- Middle Aged
- Periodontitis
(etiology, therapy)
- Statistics, Nonparametric
- Treatment Outcome
- Ultrasonic Therapy
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