Peri-implant bone regeneration after CO2-laser treatment

Peri-implant bone regeneration after CO2-laser treatment
S. STUEBINGER1, H. DEPPE2, K. DONATH3, and A. KOLK2, 1 Kantonspital Basel, Switzerland, 2 Technical University, D - Munich, M??nchen, Germany, 3 Abteilung Oralpathologie der Universit?腷 Hamburg, R??dinghausen, Germany
March 2004
Clinical Implant Studies
Objectives: The CO2-laser has proven to be suitable for the treatment of ailing implants. Therefore, the purpose of this study was to analyse the course of time in bone regeneration after peri-implant care with the CO2-laser, as until now very little is known about the time response. Methods: In 6 beagle dogs, a total of 60 implants were treated either by air-powder-abrasive, by single laser irradiation or by a combination of both. After therapy,a polychrome sequence labelling with four distinct markers was performed. Four months later, histologic sections were photographed and scanned. Each image was detected with special analysis software and indicated as percentage of the standardized measurement frame. Finally the timeline of osseous neoformation in the three therapy groups was determined. Results: Histomorphometric analysis showed maximum bone regeneration after a period of eight weeks in all three groups. During this term laser as well as the combination treatment showed significant higher amounts of new bone matrix formation than single air-powder-abrasive application. However, there were no significant distinctions in bone regeneration between laser alone or the combination therapy. Conclusions: CO2-laser treatment proves to be a possible alternative to conventional cleaning methods in peri-implant care as a high bone regeneration can be achieved.