Biofilm formation on metal alloys, zirconia and polyetherketoneketone as implant materials in vivo

This study investigated biofilm formation on discs of metal alloys, zirconia and polyetherketoneketone in vivo.

Material and Methods

Sixteen healthy volunteers conducted two runs of 24 hr each wearing an intraoral splint with 15 discs representing five different materials (gold‐based [EL] and silver‐based [PA] noble metal alloys; zirconia [ZR]; polyetherketoneketone [PEKK]; titanium zirconium alloy [TiZr]). Safranin staining assays and colony‐forming unit (CFU) counts were conducted.

Silver‐based noble alloy and gold‐based high noble alloy demonstrated the least biofilm formation indicating a potential clinical use as material for implant components in the transmucosal compartment. Zirconia and Polyetherketoneketone revealed similar results as the reference material titanium zirconium alloy used in commercially available titanium dental implant.
Author(s) Source
Zeller B, Stöckli S, Zaugg LK, Astasov‐Frauenhoffer M, Hauser‐Gerspach I, Waltimo T, Zitzmann NU
Clinical Oral Implant Research,
01.09.2020,  
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