Adhesion of Hydroxyapatite Nanoparticles to Dental Materials under Oral Conditions

Figure 10

SEM micrographs at 20,000-fold magnification showing the 2-h pellicle on titanium (a) and enamel (c) control samples in comparison with titanium rinsed with HAP II (b) and enamel rinsed with HAP III (d). Higher magnification figures provide the visualization of connective structures between HAP II solution and titanium surface (b) and HAP III and enamel surface (d) 2 h after oral exposure to these HAP solutions. The HAP particles are in direct contact with globular structures from the acquired pellicle. Arrows point to connective bridges in-between the HAP particles and between them and the pellicle.

(a)

(b)

(c)

(d)