Wettability versus electrostatic forces in fibronectin and albumin adsorption to titanium surfaces.

Objectives: Although the enhancement of plasma protein adsorption to titanium ( Ti ) following wetting has been recognized, the relationship between wettability and electrostatic forces has remained unclear. Thus, we have carried out a series of studies to determine the role of wettability and electrostatic forces on protein adsorption.

Methods: Titanium disks with different surfaces were wetted with a range of solutions, two of which contained divalent positive ions ( Ca and Mg ).

The adhesion of oral bacteria to modified titanium surfaces: role of plasma proteins and electrostatic forces.

Objectives: Modifications of titanium (Ti) implant surfaces have a significant effect on early biofilm formation and the outcome of implant procedures. The aim of this study was to examine the role of plasma proteins and electrostatic forces in the adhesion mechanism of oral bacteria to modified Ti surfaces.

Materials And Methods: Ti discs with three different types of surface modifications, machined, acid-etched, and acid-etched and blasted, were examined for adhesion of oral bacteria: Streptococcus mutans, Porphyromonas gingivalis, and Fusobacterium nucleatum.