Abstract
Biofilm development on the internal surfaces of dental implants and dental implant components may be associated with peri-implant hard and soft tissue abnormalities. Currently, no protocols have been established for effective disinfection of removable implant components. The purpose of this study was to evaluate the antibiofilm properties of commonly used dental antimicrobial agents (chlorhexidine and delmopinol) on multispecies biofilms. Biofilms of 48h and 168h maturity were exposed to 0.2% chlorhexidine, 2% chlorhexidine and a product containing 0.2% delmopinol for 5, 10 and 20min. 2% chlorhexidine was the most effective agent, achieving a total viable biofilm reduction ranging from 96.2% to >99.99% depending on the time of exposure and the stage of biofilm development.
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