Mechanical non-surgical treatment of peri-implantitis: a double-blind randomized longitudinal clinical study. I: clinical results.

Abstract

BACKGROUND:

Peri-implantitis is a frequent finding in patients with dental implants. The present study compared two non-surgical mechanical debridement methods of peri-implantitis.

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.

• 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)

Chemical References

• Dental Implants

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