Authors
Oates T.W., Valderrama P., Bischof M., Nedir R., Jones A., Simpson J., Toutenburg H., Cochran D.L.
Title
Enhanced implant stability with a chemically modified SLA surface: A randomized controlled clinical trial.
Journal
The International Journal of Oral and Maxillofacial Implants 22:755-760, 2007
Abstract
Abstract Chemical modification to a sand-blasted, acid-etched (SLA) implant surface has been shown to enhance the rate of osseointegration. The goal of the present study was to examine changes in stability for implants with the chemically modified surface, and to compare their outcome to control implants. A randomized controlled trial was conducted with 31 patients, each patient receiving two implants having the same physical properties, but with one having the standard SLA surface (control) and one with the modified surface (test). Resonance frequency analysis was assessed weekly over the first 6 weeks following implant placement. All implants proved clinically successful allowing for restoration. With most implants placed in the mandible (50 of 62), the shift in implant stability from one of decreasing stability to one of increasing stability (p<0.0001), occurred after 2 weeks for the test implants and after 4 weeks for the control implants. The findings from this pilot study provides clinical support for the potential for chemical modification of the SLA surface to alter biologic events during the osseointegration process, and demonstrated levels of short-term clinical success similar to implants with an SLA surface.
Keywords
Key Words: Implant stability, clinical trial, resonance frequency analysis, implant surface chemistry
